CVE-2021-45357 Cross-site scripting in n/a
An attacker can inject malicious scripts via the pwg_activity function in Piwigo, potentially leading to session hijacking or arbitrary 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
- None listed
What is CVE-2021-45357?
CVE-2021-45357 is a medium-severity cross-site scripting vulnerability in Piwigo Piwigo, published on 10 Feb 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
Cross Site Scripting (XSS) vulnerability exists in Piwigo 12.x via the pwg_activity function in include/functions.inc.php.
Weakness: CWE-79
Which versions are affected by CVE-2021-45357?
It affects 1 product.
Products include Piwigo Piwigo.
How do I fix CVE-2021-45357?
No fix has been published for CVE-2021-45357 yet. Limit exposure of the affected software until one is available.
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-2021-45357 being exploited?
There is no known exploitation of CVE-2021-45357 in the wild and no public exploit code.
Other vulnerabilities in Piwigo Piwigo
Sources
Also known as GHSA-5jrx-wx9x-fj78.