CVE-2021-24276 — Contact Form by Supsystic < 1.7.15 - Reflected Cross-Site scripting (XSS)

Description

The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue

Affected products

Vendor	Product	Affected	Fixed
Supsystic	Contact Form by Supsystic	1.7.15 – < 1.7.15	1.7.15

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Exploit-DB 1

WordPress Plugin Contact Form 1.7.14 - Reflected Cross-Site Scripting (XSS) EDB-50344 · webapps · Sep 28, 2021

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

WordPress Supsystic Contact Form <1.7.15 - Cross-Site Scripting http/cves/2021/CVE-2021-24276.yaml

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.