PT-2026-135394

Published

2026-10-23

·

Updated

2026-10-23

Description by

Score
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  • Fix IMAP command injection via CRLF in uid parameter of mail/headers and mail/viewsource action, reported by Wahab “NeoX” K.
  • Fix bug where an alias login wasn’t qualified by IMAP host, reported by Milan Hoppe.
  • Add a size limit to the CSS proxy content processing, reported by Milan Hoppe.
  • Fix SSRF filter (is local url()) bypass via NAT64 64:ff9b::/96, reported by dizconnect.
  • Fix remote content blocking bypass via SVG SMIL by attribute, reported by Milan Hoppe.
  • Fix remote content blocking bypass via CSS escapes in FuncIRI attributes (again), reported by Milan Hoppe.
  • Fix passing potentally unsafe attachment content into ImageMagick on image resize, reported by Paulos Yibelo
  • Fix mail header injection via the From display-name in the Bounce (resend) action, reported by Clay.
  • Fix mail header injection via References/In-Reply-To/Message-ID/From parameters, reported by Sunil Tripathy.
  • Fix object injection primitive in rcube session::unserialize() via “!”-prefixed session keys, reported by Oli Z.
  • Fix ImageMagick resource limits bypass by GD fallback during thumbnail generation, reported by GoldenSW.
  • Fix CSS scoping bypass in HTML messages using at-rules, reported by GoldenSW.
  • Fix bug where deprecated action aliases bypassed disabled actions setting, reported by Squirt1e, Atum, N0b0dy, and Gh0u1L5.
  • Fix IMAP command injection via CRLF in flag parameter of mail/mark action, reported by Squirt1e, Atum, N0b0dy, and Gh0u1L5.
  • Fix CSRF validation bypass in the mark-as-junk action, reported by Squirt1e, Atum, N0b0dy, and Gh0u1L5.
  • Fix XSS issue in handling of password driver error responses, reported by Squirt1e, Atum, N0b0dy, and Gh0u1L5.
  • Fix mail header injection via subject of a message forwarded as attachment, reported by Squirt1e, Atum, N0b0dy, and Gh0u1L5.
  • Fix mail header injection via media type in an inline image data URI, reported by Squirt1e, Atum, N0b0dy, and Gh0u1L5.
  • Fix bug where Password Modoboa driver could change password for another account, reported by Squirt1e, Atum, N0b0dy, and Gh0u1L5.
  • Fix unsafe use of a login name in SquirrelMail import file path, reported by Squirt1e, Atum, N0b0dy, and Gh0u1L5.
Vendors
Affected products
Related identifiers
MGASA-2026-0532
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