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Description

Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13, when "Block remote images" is used, does not block SVG feImage.

PUBLISHED Reserved 2026-02-09 | Published 2026-02-09 | Updated 2026-02-09 | Assigner mitre




MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Problem types

CWE-420 Unprotected Alternate Channel

Product status

Default status
unaffected

Any version before 1.5.13
affected

1.6.0 (semver) before 1.6.13
affected

References

nullcathedral.com/...ndcube-svg-feimage-remote-image-bypass/

github.com/roundcube/roundcubemail/commit/26d7677

news.ycombinator.com/item?id=46937012

cve.org (CVE-2026-25916)

nvd.nist.gov (CVE-2026-25916)

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