{"cve":"CVE-2023-52431","nvd":{"published":"2024-02-13T05:15:08.797","modified":"2026-06-17T06:42:40.597","status":"Modified","description":"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).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-352","CWE-269"],"references":["https://github.com/briandfoy/cpan-security-advisory/blob/9374f98bef51e1ae887f293234050551c079776f/cpansa/CPANSA-Plack-Middleware-XSRFBlock.yml#L2-L15","https://metacpan.org/release/DAKKAR/Plack-Middleware-XSRFBlock-0.0.19/source/Changes","https://github.com/briandfoy/cpan-security-advisory/blob/9374f98bef51e1ae887f293234050551c079776f/cpansa/CPANSA-Plack-Middleware-XSRFBlock.yml#L2-L15","https://metacpan.org/release/DAKKAR/Plack-Middleware-XSRFBlock-0.0.19/source/Changes"],"products":["plack\\:\\"],"source":"nvd","synced_at":"2026-10-19T21:45:59.823092188+00:00"},"epss":{"cve":"CVE-2023-52431","score":0.00244,"percentile":0.15709,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}