XSS in Discourse Discourse-Placeholder-Theme-Component

CVE-2024-43408

Discourse Placeholder Forms will let you build dynamic documentation. Unsanitized and stored user input was injected in the html of the post. The vulnerability is fixed in commit a62f711d5600e4e5d86f342d52932cb6221672e7.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (15.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2024-43408: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-43408?
CVE-2024-43408 is a medium-severity vulnerability in Discourse Discourse-Placeholder-Theme-Component, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2024-08-20.
How severe is CVE-2024-43408?
Medium severity. CVSS v3 base score is 6.3 out of 10.
Is CVE-2024-43408 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.