XSS in Opencats
CVE-2023-27294
Improper neutralization of input during web page generation allows an authenticated attacker with access to a restricted account to submit malicious Javascript as the description for a calendar event, which would then be executed in other users' browsers if they browse to that event. This could result in stealing session tokens from users with higher permission levels or forcing users to make actions without their knowledge.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.005 (41.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Opencats — versions 0.9.6
- N/a Opencats — versions 0.9.6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vulnreport@tenable.com (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-27294?
- CVE-2023-27294 is a medium-severity vulnerability in Opencats, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-02-28.
- How severe is CVE-2023-27294?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2023-27294 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.