CVE-2023-22454
High
Description
Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 3.0.0.beta16 on the `beta` and `tests-passed` branches, pending post titles can be used for cross-site scripting attacks. Pending posts can be created by unprivileged users when a category has the "require moderator approval of all new topics" setting set. This vulnerability can lead to a full XSS on sites which have modified or disabled Discourse’s default Content Security Policy. A patch is available in versions 2.8.14 and 3.0.0.beta16.
SeverityHigh
CVSS8.0
Exploit probability—
Product
Discourse
PublishedJan 5, 2023
First seenJan 5, 2023
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- discourse discourse2.8.14 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| discourse discourse | v < 2.8.14, 1.1.0, 1.2.0, 1.3.0, 1.4.0, 1.5.0, 1.6.0, 1.7.0, 1.8.0, 1.9.0, 2.0.0, 2.1.0, 2.2.0, 2.3.0, 2.4.0, 2.5.0, 2.6.0, 2.7.0, 2.8.0, 2.9.0 | 2.8.14 |
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