CVE-2025-65840: PublicCMS · Cross-Site Request Forgery (CSRF)
Affects PublicCMSSource CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 1 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubsanluan/PublicCMSpkg:github/sanluan/PublicCMSOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
- Immediately monitor official PublicCMS channels for patches or security advisories addressing CVE-2025-65840 and apply updates as soon as they become available.
- Implement strict anti-CSRF tokens in all forms and state-changing requests within the CMS, especially in the CkEditorAdminController.
- Enforce same-site cookie attributes (SameSite=Lax or Strict) to reduce CSRF attack surface.
- Configure web application firewalls (WAFs) to detect and block suspicious CSRF patterns or unexpected POST requests targeting administrative endpoints.
- Disable or restrict access to the CkEditorAdminController if it is not essential for daily operations.
- Educate users and administrators about phishing and social engineering risks that could trigger CSRF attacks.
- Conduct regular security audits and penetration testing focusing on CSRF and other web vulnerabilities.
- Employ Content Security Policy (CSP) headers to restrict the sources of executable scripts and reduce the risk of malicious payload execution.
- Review and tighten user session management and authentication mechanisms to limit the impact of compromised sessions.
- Maintain comprehensive logging and monitoring to detect anomalous activities indicative of exploitation attempts.
Description
PublicCMS V5.202506.b is vulnerable to Cross Site Request Forgery (CSRF) in the CkEditorAdminController.