CVE-2021-25295
CVE-2021-25295 is a medium-severity vulnerability in Opencats with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 4.3
- EPSS exploit prediction: 2% (72nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Opencats
- Published:
- Last modified:
Description
OpenCATS through 0.9.5-3 has multiple Cross-site Scripting (XSS) issues.
Frequently asked questions
- What is CVE-2021-25295?
- OpenCATS through 0.9.5-3 has multiple Cross-site Scripting (XSS) issues.
- How severe is CVE-2021-25295?
- CVE-2021-25295 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-25295 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-25295?
- CVE-2021-25295 affects Opencats. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-25295?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-25295 published?
- CVE-2021-25295 was published on 2021-01-18 and last updated on 2026-06-17.
References
- https://github.com/snoopysecurity/snoopysecurity.github.io/blob/master/web-application-security/2021/01/16/09_opencats_php_object_injection.html
- https://snoopysecurity.github.io/web-application-security/2021/01/16/09_opencats_php_object_injection.html
- https://www.opencats.org/news/
Affected products (1)
- cpe:2.3:a:opencats:opencats:*:*:*:*:*:*:*:*
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