GHSA-43c9-gw4x-pcx6 · Severity: high · Ecosystem: composer — Authenticated arbitrary file deletion in YesWiki
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 any limitation on the filesystem's scope. This vulnerability allows any authenticated user to arbitrarily remove content from the Wiki resulting in partial loss of data and defacement/deterioration of the website. In the context of a container installation of YesWiki without any modification, the `yeswiki` files (for example .php) are not owned by the same user (root) as the one running the FPM process (www-data). However in a standard installation, www-data may also be the owner of the PHP files, allowing a malicious user to completely cut the access to the wiki by deleting all important PHP files (like index.php or core files of YesWiki). Version 4.5.0 contains a patch for this issue.
Conclusion & alert: CVE-2025-24019 is rated Exploit Available (58.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.57%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-19 | 0.54% | 0.57% | +0.02% |
| 2 | 2026-06-15 | 0.62% | 0.54% | -0.08% |
| 3 | 2026-05-11 | — | 0.62% | — |
Full EPSS history (14 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.1 | 3.1 | HIGH |
|
2.8 | 4.2 | [email protected] |
| 7.1 | 3.1 | HIGH |
|
2.8 | 4.2 | [email protected] |
GHSA-43c9-gw4x-pcx6 · Severity: high · Ecosystem: composer — Authenticated arbitrary file deletion in YesWiki
| URL | Tags |
|---|---|
| https://github.com/YesWiki/yeswiki/commit/3ddd833d22703caf9025659eb174f7765df7147c | Patch |
| https://github.com/YesWiki/yeswiki/security/advisories/GHSA-43c9-gw4x-pcx6 | Exploit Third Party Advisory |