NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resulting in potential signature forgeries.
Exploitability
AV:LAC:LPR:NUI:NScope
S:CImpact
C:NI:LA:N4.3/CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:NOther