Vulnerability · CVE-2025-13820
The Comments WordPress plugin before 7.6.40 does not properly validate user's identity when using the disqus.com provider, allowing an attacker to log in to any user (when knowing
Published Jan 1, 2026 · catalog updated Jan 5, 2026 · Unknown Comments
Last checked Nov 3, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-13820. EPSS is 0.26%. Act only if a listed version of Unknown Comments is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium5.3
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.26%
- Remediation
- Version ranges on file
- Affected products
- vendor Unknown Comments 0 <7.6.40
The Comments WordPress plugin before 7.6.40 does not properly validate user's identity when using the disqus.com provider, allowing an attacker to log in to any user (when knowing their email address) when such user does not have an account on disqus.com yet.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Unknown Comments 0 <7.6.400 <7.6.40
How to fix CVE-2025-13820
Upgrade
CVE-2025-13820 lists a fix boundary at 7.6.40. Compare the installed build with that boundary before you change production.
Version check
Seen in 0 <7.6.40
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-13820. EPSS is 0.26%. Act only if a listed version of Unknown Comments is installed.
Which versions are affected?
Compare what you have installed with Unknown Comments 0 <7.6.40 0 <7.6.40. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.26%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jan 1, 2026 · EUVD
Detected
The Comments WordPress plugin before 7.6.40 does not properly validate user's identity when using the disqus.com provider, allowing an attacker to log in to any user (when knowing their email address) when such user does not have an account on disqus.com yet.
Jan 5, 2026 · EUVD
Updated
The Comments WordPress plugin before 7.6.40 does not properly validate user's identity when using the disqus.com provider, allowing an attacker to log in to any user (when knowing their email address) when such user does not have an account on disqus.com yet.
Sources
- CVE.orgVulnerability recordCVE-2025-13820
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-13820
30-day exploitation probability 0.26%
first.org - EUVDVulnerability recordEUVD-2026-0001
The Comments WordPress plugin before 7.6.40 does not properly validate user's identity when using the disqus.com provider, allowing an attacker to log in to any user (when knowing their email address) when such user does not have an account on disqus.com yet.
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Nov 3, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 3, 2026
- CVE.orgOct 31, 2026
- EUVDOct 31, 2026