HIGH🇵🇱 Wersja polska

CVE-2026-55424

CVSS 7.4v4.0pub. 2026-07-09upd. 2026-07-14

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a topic "featured link" was not sufficiently normalized and escaped before being rendered in the topic list, allowing a user who can set a featured link to inject JavaScript when default Content Security Policy protections were modified or disabled. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

  • Discourse

    APP
    Discourse
    2026.6.02026.1.0 – 2026.1.5 (excl.)2026.4.0 – 2026.4.2 (excl.)2026.5.0 – 2026.5.1 (excl.)
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CHECK WITH VENDOR
No clear patch data available. Check vendor references.
Tags
XSS
CWE
References

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