Vulnerability in Manwar Cgi::simple
CVE-2025-40927
CGI::Simple versions before 1.282 for Perl has a HTTP response splitting flaw This vulnerability is a confirmed HTTP response splitting flaw in CGI::Simple that allows HTTP response header injection, which can be used for reflected XSS or…
EPSS: 0.004 (34.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Manwar Cgi::simple — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (related)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (related)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (technical-description)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (technical-description)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (related)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (related)
Frequently asked questions
- What is CVE-2025-40927?
- CVE-2025-40927 is a high-severity vulnerability in Manwar Cgi::simple, classified under HTTP Response Splitting. CVSS score: 7.3/10. Published 2025-08-29.
- How severe is CVE-2025-40927?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2025-40927 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.