The Plack::Middleware::XSRFBlock package before 0.0.19 for Perl allows attackers to…
Priority MEDIUM 40CWE-269Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Privilege escalation, Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-269 and CWE-352.
Summary
The Plack::Middleware::XSRFBlock package before 0.0.19 for Perl allows attackers to bypass a CSRF protection mechanism via an empty form value and an empty cookie (if signed cookies are disabled).
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00244 15th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:plack\:\:middleware\:\:xsrfblock_project:plack\:\:middleware\:\:xsrfblock:*:*:*:*:*:perl:*:* | middleware \ | Vulnerable | Plack |
- cpe:2.3:a:plack\:\:middleware\:\:xsrfblock_project:plack\:\:middleware\:\:xsrfblock:*:*:*:*:*:perl:*:* Versions middleware \ Vulnerable ·Plack
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-52431
- 2026-10-03 Alias added: GHSA-895f-2fwm-hcv8
References
Sources
- CVE-2023-52431 · CVE Program
- CVE-2023-52431 · NVD
- FIRST EPSS
- GHSA-895f-2fwm-hcv8 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences