CVE-2025-13820
CVE-2025-13820 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- EPSS exploit prediction: 0% (13th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-0001
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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 their email address) when such user does not have an account on disqus.com yet.
- How severe is CVE-2025-13820?
- CVE-2025-13820 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2025-13820 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-13820?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-13820 have an EU (EUVD) identifier?
- Yes. CVE-2025-13820 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-0001.
- When was CVE-2025-13820 published?
- CVE-2025-13820 was published on 2026-01-01 and last updated on 2026-06-17.