CVE-2023-49146 Cross-site Scripting in DOMSanitizer
An attacker can execute arbitrary scripts via crafted SVG documents due to improper sanitization in the DOMSanitizer library.
- 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-2023-49146?
CVE-2023-49146 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Nov 2023. 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
DOMSanitizer (aka dom-sanitizer) before 1.0.7 allows XSS via an SVG document because of mishandling of comments and greedy regular expressions.
Weakness: CWE-79
Which versions are affected by CVE-2023-49146?
2 open source packages ship an affected version, including rhukster/dom-sanitizer. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
rhukster/dom-sanitizer Packagist | All versions | 1.0.7 |
rhukster/dom-sanitizer Packagist | All versions | 1.0.7 |
Products include Getgrav Dom-Sanitizer.
How do I fix CVE-2023-49146?
Upgrade rhukster/dom-sanitizer to 1.0.7 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-2023-49146 being exploited?
There is no known exploitation of CVE-2023-49146 in the wild and no public exploit code.
Sources
Also known as GHSA-2ghm-r75j-pjx2.