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High severity7.5NVD Advisory· Published Jun 9, 2025· Updated Jun 17, 2026

CVE-2025-48053

CVE-2025-48053

Description

Discourse is an open-source discussion platform. Prior to version 3.4.4 of the stable branch, version 3.5.0.beta5 of the beta branch, and version 3.5.0.beta6-dev of the tests-passed branch, sending a malicious URL in a PM to a bot user can cause a reduced the availability of a Discourse instance. This issue is patched in version 3.4.4 of the stable branch, version 3.5.0.beta5 of the beta branch, and version 3.5.0.beta6-dev of the tests-passed branch. No known workarounds are available.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

9
  • Discourse (software)/Discourse8 versions
    cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:*+ 7 more
    • cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:*range: <3.5.0
    • cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*range: <3.4.4
    • cpe:2.3:a:discourse:discourse:3.5.0:beta1:*:*:beta:*:*:*
    • cpe:2.3:a:discourse:discourse:3.5.0:beta2:*:*:beta:*:*:*
    • cpe:2.3:a:discourse:discourse:3.5.0:beta3:*:*:beta:*:*:*
    • cpe:2.3:a:discourse:discourse:3.5.0:beta4:*:*:beta:*:*:*
    • (no CPE)range: <3.4.4, <3.5.0.beta5, <3.5.0.beta6-dev
    • (no CPE)range: < 3.4.4
  • osv-coords
    pkg:bitnami/discourse
    Range: < 3.4.4

Patches

Vulnerability mechanics

References

1

News mentions

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