Description
The underConstruction plugin <= 1.18 for WordPress echoes out the raw value of `$GLOBALS['PHP_SELF']` in the ucOptions.php file. On certain configurations including Apache+modPHP, this makes it possible to use it to perform a reflected Cross-Site Scripting attack by injecting malicious code in the request path.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Noah Kagan | underConstruction | 1.18 – ≤ 1.18 | — |
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 Under Construction <1.19 - Cross-Site Scripting http/cves/2021/CVE-2021-39320.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.