Vulnerability · Published Jul 30, 2024 · Assigned by GitHub_M

CVE-2024-39320Discourse allows iframe injection though default site setting

Medium 6.1

In plain English

A medium-severity injection in discourse from discourse. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.3%top 71.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Discourse is an open source discussion platform. Prior to 3.2.5 and 3.3.0.beta5, the vulnerability allows an attacker to inject iframes from any domain, bypassing the intended restrictions enforced by the allowed_iframes setting. This vulnerability is fixed in 3.2.5 and 3.3.0.beta5.

Affected products (as reported)

Vendor	Product	Versions
discourse	discourse	< 3.2.5>= 3.3.0.beta1, < 3.3.0.beta5

Weakness: CWE-74, CWE-1021 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

https://github.com/discourse/discourse/security/advisories/GHSA-4p82-xh38-gq4p x_refsource_CONFIRM
https://github.com/discourse/discourse/commit/188cb58daa833839c54c266ce22db150a3f3a210 x_refsource_MISC
https://github.com/discourse/discourse/commit/76f06f6b1491db6bd09a4017d2c5591431b3b16e x_refsource_MISC