CVE-2021-29274 Cross-site scripting in n/a
Cross-site scripting in Redmine allows attackers to inject malicious scripts via issue subjects, potentially leading to session hijacking or code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-29274?
CVE-2021-29274 is a medium-severity cross-site scripting vulnerability in Redmine Redmine, published on 29 Mar 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Redmine 4.1.x before 4.1.2 allows XSS because an issue's subject is mishandled in the auto complete tip.
Weakness: CWE-79
Which versions are affected by CVE-2021-29274?
1 open source package ship an affected version, including redmine. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
redmine Bitnami | From 4.1.0 | 4.1.2 |
Products include Redmine Redmine.
How do I fix CVE-2021-29274?
Upgrade redmine to 4.1.2 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2021-29274 being exploited?
There is no known exploitation of CVE-2021-29274 in the wild and no public exploit code.
Other vulnerabilities in Redmine Redmine
Sources
Also known as BIT-redmine-2021-29274, GHSA-3mmr-8p86-6669.