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YesWiki

82 known vulnerabilities.

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  • Medium 4.3

    YesWiki before 4.6.7 CSRF Page Revision Restore via RevisionsHandler

    YesWiki before 4.6.7 contains a cross-site request forgery vulnerability in RevisionsHandler that allows attackers to restore old page revisions through GET requests lacking CSRF token validation. Attackers can lure write-capable users into a top-level naviga…

  • Medium 6.5

    YesWiki before 4.6.7 ACL Bypass and Stored XSS via pointimage Action

    YesWiki before 4.6.7 contains a missing authorization flaw in the pointimage action (tools/attach/actions/pointimage.php), which saves content to an attacker-chosen page with write ACL checks bypassed. Unauthenticated attackers can POST pagetag, title, and de…

  • High 8.1

    YesWiki before 4.6.7 CSRF Page Deletion via ajaxdeletepage Handler

    YesWiki before 4.6.7 contains a cross-site request forgery vulnerability in the ajaxdeletepage handler, which permanently deletes a page on any GET request carrying a jsonp_callback parameter without checking a CSRF token. Attackers can lure a logged-in admin…

  • Medium 6.5

    YesWiki before 4.6.7 Unauthenticated Page Overwrite via Bazar id_fiche

    YesWiki before 4.6.7 contains an access control vulnerability allowing unauthenticated attackers to overwrite any existing wiki page, including pages whose write ACL restricts editing, via the Bazar entry-creation flow. Attackers can submit a crafted entry wi…

  • High 7.1

    YesWiki before 4.6.7 CSRF Package Deletion via autoupdate UpdateAction

    YesWiki before 4.6.7 contains a cross-site request forgery vulnerability in the autoupdate UpdateAction that allows attackers to delete installed packages via unprotected GET requests. Attackers can lure a logged-in administrator to a crafted link with action…

  • Medium 6.5

    YesWiki before 4.6.7 Unauthenticated Open Mail Relay via Contact Mail Handler

    YesWiki before 4.6.7 contains an authentication bypass in the contact mail AJAX handler that allows unauthenticated attackers to send email through the wiki's SMTP server. Attackers can POST an XMLHttpRequest to the mail handler without field or type paramete…

  • High 8.2

    YesWiki before 4.6.7 Authentication Bypass via ActivityPub Inbox Actor Spoofing

    YesWiki before 4.6.7 contains an authentication bypass vulnerability in the ActivityPub inbox that fails to bind the verified HTTP signature signer to the activity actor. Unauthenticated attackers with any ActivityPub keypair can send signed Delete or Update …

  • High 7.1

    YesWiki before 4.6.7 Authorization Bypass via Comments API editComment

    YesWiki before 4.6.7 contains an authorization bypass vulnerability in the comments API editComment route that allows authenticated low-privilege users to overwrite arbitrary pages or comments by supplying their own page as the pagetag field. Attackers can se…

  • High 8.1

    YesWiki before 4.6.7 Scope Bypass via Triples Delete API

    YesWiki before 4.6.7 contains an empty-filter scope bypass in the triples delete API that allows any authenticated user to delete or forge arbitrary semantic triples regardless of ownership. Attackers can send an empty filter to the triples delete endpoint to…

  • Medium 5.8

    YesWiki before 4.6.7 Unauthenticated SSRF via syndication Action

    YesWiki before 4.6.7 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to make the server fetch arbitrary URLs by supplying a syndication action through the render handler's content parameter. Attackers can tar…

  • Medium 5.3

    YesWiki before 4.6.7 Unauthenticated SSRF via valeur Action

    YesWiki before 4.6.7 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to make the server fetch arbitrary hosts and ports via the {{valeur}} action's url parameter. Attackers can submit the action through the c…

  • Medium 5.3

    YesWiki before 4.6.7 User Enumeration via Lost-Password Flow

    YesWiki before 4.6.7 contains a user enumeration vulnerability in LostPasswordAction.php that allows unauthenticated attackers to confirm registered email addresses through differing responses. Attackers can submit emails to the MotDePassePerdu recovery page …

  • Medium 5.3

    YesWiki before 4.6.7 Blind SSRF via bazarlist API idtypeannonce Parameter

    YesWiki before 4.6.7 contains a blind server-side request forgery vulnerability that allows unauthenticated attackers to make arbitrary server-side requests via the idtypeannonce parameter of /api/entries/bazarlist. Because isValidURL() always returns true, a…

  • Medium 5.3

    YesWiki before 4.6.7 Information Disclosure via listpagestag and includepages Actions

    YesWiki before 4.6.7 contains a missing authorization vulnerability in the listpagestag and includepages actions of the tags tool, which enumerate pages without applying read-ACL filtering. Unauthenticated or unprivileged attackers can embed these actions wit…

  • Critical 9.4

    YesWiki: Authenticated PHP Object Injection in BazarImportAction via unserialize

    YesWiki is a wiki system written in PHP. Prior to version 4.6.6, there is an authenticated PHP object injection vulnerability in BazarImportAction via unserialize. This issue has been patched in version 4.6.6.

  • High 8.8

    YesWiki Authenticated SQL Injection in ReactionManager

    YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki through the latest development branch contains a SQL injection vulnerability in ReactionManager::deleteUserReaction() that allows any authenticated user to inject arbitrary SQL via the {…

  • Medium 6.1
    CVE-2026-52774 Public exploit Scanner template

    Reflected XSS via Unescaped `id` Parameter in Bazar Widget HTML Attributes in YesWiki

    YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki's Bazar widget handler reflects the id GET parameter into HTML attributes using strip_tags() only. Because strip_tags() does not escape double quotes, an attacker can break out of the at…

  • Medium 6.1
    CVE-2026-52773 Scanner template

    Reflected XSS via Unescaped Archived-Revision `time` Parameter in `handlers/page/show.php` in YesWiki

    YesWiki is a wiki system written in PHP. From version 4.1.0 to before version 4.6.6, YesWiki's archived-revision view reflects the time GET parameter into a hidden HTML input in handlers/page/show.php without escaping. Because MySQL coerces malformed DATETIME…

  • Medium 5.5

    YesWiki: Bazar form-field templates still apply `|raw('html')` to `field.label` / `field.hint` in attribute and label-body contexts — stored XSS in form renders (sibling class of commit `e6b66aa`)

    YesWiki is a wiki system written in PHP. Prior to version 4.6.6, Bazar form-field templates still apply |raw('html') to field.label / field.hint in attribute and label-body contexts, resulting stored XSS in form renders. This issue has been patched in version…

  • High 8.3

    YesWiki: Second-Order SQL Injection in Page Delete API via Unescaped Page Tag (`ApiController::deletePage`)

    YesWiki is a wiki system written in PHP. From version 4.2.0 to before version 4.6.6, ApiController::deletePage() interpolates a page tag retrieved from the database into a DELETE FROM …_links WHERE to_tag = '$tag' query without escaping. The page tag is attac…

  • High 7.5

    Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in yeswiki/yeswiki

    YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki’s public Bazar entry-listing APIs are vulnerable to unauthenticated SQL injection in numeric query / queries filters. For Bazar fields whose value structure is numeric, YesWiki escapes t…

  • High 8.3

    YesWiki: Unauthenticated Server-Side Request Forgery via ActivityPub `Signature.keyId`

    YesWiki is a wiki system written in PHP. From version 4.6.2 to before version 4.6.6, the POST /api/forms/{formId}/actor/inbox route - exposed publicly with acl:"public" - accepts an HTTP Signature header whose keyId parameter is a URL. HttpSignatureService::v…

  • High 8.2

    YesWiki: Unauthenticated ActivityPub Signature-Verification Bypass via `!openssl_verify(...)` accepting `int(-1)`

    YesWiki is a wiki system written in PHP. From version 4.6.2 to before version 4.6.6, HttpSignatureService::verifySignature() checks the result of PHP's openssl_verify() with a loose boolean negation - if (!openssl_verify(...)) { throw ... }. PHP's openssl_ver…

  • Critical 9.1

    YesWiki: Unauthenticated arbitrary page deletion via `{{erasespamedcomments}}` action

    YesWiki is a wiki system written in PHP. Prior to version 4.6.6, the {{erasespamedcomments}} wiki action (actions/EraseSpamedCommentsAction.php) accepts a suppr[] array from POST and deletes every wiki page whose tag appears in that array, with no authorizati…

  • Medium 6.5

    YesWiki: SQL injection via the `recentchanges` action `period` argument leading to arbitrary DB read

    YesWiki is a wiki system written in PHP. Prior to version 4.6.6, the recentchanges action (actions/recentchanges.php) accepts a period argument from two disjoint parameter spaces. A whitelist validates only the URL form against ['day','week','month']. The act…

  • High 7.1

    YesWiki: Authenticated (Admin) Server-Side Template Injection to Remote Code Execution via Bazar Semantic Templates

    YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki Bazar contains a stored Server-Side Template Injection (SSTI) vulnerability in the semantic template feature that can be escalated to confirmed Remote Code Execution (RCE). An authentica…

  • Critical 9.8
    CVE-2026-46670 Scanner template

    YesWiki: Unauthenticated SQL Injection

    YesWiki is a wiki system written in PHP. Prior to version 4.6.4, an unauthenticated SQL injection in the Bazar form-import path (`FormManager::create()`) allows any unauthenticated visitor of a default YesWiki install to inject arbitrary SQL into an `INSERT` …

  • Critical 9.8

    YesWiki has Unsafe eval() in Formula Calculator - Remote Code Execution (RCE) & Denial of Service (DoS)

    YesWiki is a wiki system written in PHP. Prior to version 4.6.6, an unsafe execution vulnerability exists in the Bazar form field calculator (CalcField.php) of YesWiki. The application attempts to sanitize user-defined mathematical formulas using a complex re…

  • High 8.8

    YesWiki vulnerable to authenticated SQL Injection via id_fiche in EntryManager::formatDataBeforeSave()

    YesWiki is a wiki system written in PHP. Prior to version 4.6.1, YesWiki bazar module contains a SQL injection vulnerability in tools/bazar/services/EntryManager.php at line 704. The $data['id_fiche'] value (sourced from $_POST['id_fiche']) is concatenated di…

  • High 7.1

    YesWiki has Persistant Blind XSS at "/?BazaR&vue=consulter"

    YesWiki is a wiki system written in PHP. Prior to version 4.6.0, a stored and blind XSS vulnerability exists in the form title field. A malicious attacker can inject JavaScript without any authentication via a form title that is saved in the backend database.…

  • Medium 4.3
    CVE-2025-46550 Scanner template

    Yeswiki Vulnerable to Unauthenticated Reflected Cross-site Scripting

    YesWiki is a wiki system written in PHP. Prior to version 4.5.4, the `/?BazaR` endpoint and `idformulaire` parameter are vulnerable to cross-site scripting. An attacker can use a reflected cross-site scripting attack to steal cookies from an authenticated use…

  • Medium 4.3
    CVE-2025-46549 Scanner template

    Yeswiki Vulnerable to Unauthenticated Reflected Cross-site Scripting

    YesWiki is a wiki system written in PHP. Prior to version 4.5.4, an attacker can use a reflected cross-site scripting attack to steal cookies from an authenticated user by having them click on a malicious link. Stolen cookies allow the attacker to take over t…

  • Critical 10.0

    YesWiki Vulnerable to Unauthenticated Site Backup Creation and Download

    YesWiki is a wiki system written in PHP. Prior to version 4.5.4, the request to commence a site backup can be performed and downloaded without authentication. The archives are created with a predictable filename, so a malicious user could create and download …

  • Low 3.5

    Yeswiki Vulnerable to Authenticated Reflected Cross-site Scripting

    YesWiki is a wiki system written in PHP. Prior to version 4.5.4, an attacker can use a reflected cross-site scripting attack to steal cookies from an authenticated user by having them click on a malicious link. Stolen cookies allow the attacker to take over t…

  • High 7.6
    CVE-2025-46349 Scanner template

    YesWiki Vulnerable to Unauthenticated Reflected Cross-site Scripting

    YesWiki is a wiki system written in PHP. Prior to version 4.5.4, YesWiki is vulnerable to reflected XSS in the file upload form. This vulnerability allows any malicious unauthenticated user to create a link that can be clicked on by the victim to perform arbi…

  • Medium 5.8

    YesWiki Remote Code Execution via Arbitrary PHP File Write and Execution

    YesWiki is a wiki system written in PHP. Prior to version 4.5.4, YesWiki vulnerable to remote code execution. An arbitrary file write can be used to write a file with a PHP extension, which then can be browsed to in order to execute arbitrary code on the serv…

  • Medium 6.3

    YesWiki Vulnerable to Stored XSS in Comments

    YesWiki is a wiki system written in PHP. Prior to version 4.5.4, a stored cross-site scripting (XSS) vulnerability was discovered in the application’s comments feature. This issue allows a malicious actor to inject JavaScript payloads that are stored and late…

  • High 8.6
    CVE-2025-31131 Public exploit Scanner template

    Path Traversal allowing arbitrary read of files in Yeswiki

    YesWiki is a wiki system written in PHP. The squelette parameter is vulnerable to path traversal attacks, enabling read access to arbitrary files on the server. This vulnerability is fixed in 4.5.2.

  • High 7.1

    YesWiki vulnerable to authenticated arbitrary file deletion

    YesWiki is a wiki system written in PHP. In versions up to and including 4.4.5, it is possible for any authenticated user, through the use of the filemanager to delete any file owned by the user running the FastCGI Process Manager (FPM) on the host without an…

  • High 7.6

    YesWiki Vulnerable to Authenticated Stored XSS

    YesWiki is a wiki system written in PHP. In versions up to and including 4.4.5, it is possible for an authenticated user with rights to edit/create a page or comment to trigger a stored XSS which will be reflected on any page where the resource is loaded. The…