CVE-2022-0951 File Upload Restriction Bypass leading to Stored XSS Vulnerability in star7th/showdoc
Attackers can bypass file upload restrictions to inject malicious scripts, leading to stored XSS in ShowDoc.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-0951?
CVE-2022-0951 is a high-severity cross-site scripting vulnerability in star7th/showdoc, published on 15 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
File Upload Restriction Bypass leading to Stored XSS Vulnerability in GitHub repository star7th/showdoc prior to 2.10.4.
Which versions are affected by CVE-2022-0951?
2 open source packages ship an affected version, including showdoc/showdoc. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
showdoc/showdoc Packagist | All versions | 2.10.4 |
showdoc/showdoc Packagist | All versions | 2.10.4 |
Products include Showdoc Showdoc.
How do I fix CVE-2022-0951?
Upgrade showdoc/showdoc to 2.10.4 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-2022-0951 being exploited?
There is no known exploitation of CVE-2022-0951 in the wild and no public exploit code.
Other vulnerabilities in star7th/showdoc
- CVE-2021-41745 Showdoc File Upload Vulnerability
- CVE-2021-36440 Unrestricted File Upload in ShowDoc v2.9.5
- CVE-2022-0942 Stored XSS due to Unrestricted File Upload in star7th/showdoc
- CVE-2022-1034 There is a Unrestricted Upload of File vulnerability in ShowDoc v2.10.3 in star7th/showdoc
- CVE-2022-0945 Stored XSS viva axd and cshtml file upload in star7th/showdoc in star7th/showdoc
Sources
Also known as GHSA-j6jg-w79c-7p8v.