CVE-2022-2514 Cross-site Scripting (XSS) - Reflected in beancount/fava
Reflected XSS in Fava allows attackers to execute arbitrary scripts via unescaped error messages in time and filter parameters.
- 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-2022-2514?
CVE-2022-2514 is a high-severity cross-site scripting vulnerability in beancount/fava, published on 25 Jul 2022. 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
The time and filter parameters in Fava prior to v1.22 are vulnerable to reflected XSS due to the lack of escaping of error messages which contained the parameters in verbatim.
Weakness: CWE-79
Which versions are affected by CVE-2022-2514?
3 open source packages ship an affected version, including fava. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
fava PyPI | All versions | 1.22 |
fava PyPI | All versions | 1.22 |
fava PyPI | All versions | 1.22 |
Products include Fava Project Fava.
How do I fix CVE-2022-2514?
Upgrade fava to 1.22 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-2022-2514 being exploited?
There is no known exploitation of CVE-2022-2514 in the wild and no public exploit code.
Other vulnerabilities in beancount/fava
Sources
Also known as DEBIAN-CVE-2022-2514, GHSA-xrf4-39fm-j5f2, PYSEC-2022-239, UBUNTU-CVE-2022-2514.