CVE-2024-47772
CVE-2024-47772 is a medium-severity vulnerability in Discourse with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 0% (25th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-42682
- Weakness: CWE-79
- Affected product: Discourse
- Published:
- Last modified:
Description
Discourse is an open source platform for community discussion. An attacker can execute arbitrary JavaScript on users' browsers by sending a maliciously crafted chat message and replying to it. This issue only affects sites with CSP disabled. This problem is patched in the latest version of Discourse. All users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled on the forum. Users who do upgrade should also consider enabling a CSP as well as a proactive measure.
Frequently asked questions
- What is CVE-2024-47772?
- Discourse is an open source platform for community discussion. An attacker can execute arbitrary JavaScript on users' browsers by sending a maliciously crafted chat message and replying to it. This issue only affects sites with CSP disabled. This problem is patched in the latest version of Discourse. All users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled on the forum. Users who do upgrade should also consider enabling a CSP as well as a proactive measure.
- How severe is CVE-2024-47772?
- CVE-2024-47772 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability low.
- Is CVE-2024-47772 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-47772?
- CVE-2024-47772 primarily affects Discourse. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2024-47772?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2024-47772 have an EU (EUVD) identifier?
- Yes. CVE-2024-47772 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-42682.
- When was CVE-2024-47772 published?
- CVE-2024-47772 was published on 2024-10-07 and last updated on 2026-06-17.
References
- https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP
- https://github.com/discourse/discourse/security/advisories/GHSA-67mh-xhmf-c56h
Affected products (3)
- cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*
- cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:3.4.0:beta1:*:*:beta:*:*:*
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