Roundcube Webmail: SVG feImage bypasses image blocking to track email opens

nullcathedral.com

Roundcube Webmail: SVG feImage bypasses image blocking to track email opens

nullcathedral.com

RSS Bot@lemmy.bestiver.seMB to Hacker News@lemmy.bestiver.seEnglish · 1 month ago

Roundcube Webmail <1.5.13 / <1.6.13 allows attackers to force remote image loads via SVG feImage

nullcathedral.com

Roundcube's HTML sanitizer doesn't treat SVG feImage href as an image source. Attackers can bypass remote image blocking to track email opens.

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