CVE-2021-42551 Reflected XSS in NetBiblio WebOPAC search functionality
An unauthenticated attacker can execute arbitrary scripts in a victim's browser via the search functionality of NetBiblio WebOPAC.
- 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-2021-42551?
CVE-2021-42551 is a medium-severity cross-site scripting vulnerability in AlCoda NetBiblio WebOPAC, published on 14 Jan 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 in the search functionality of AlCoda NetBiblio WebOPAC allows an unauthenticated user to craft a reflected Cross-Site Scripting attack. This issue affects: AlCoda NetBiblio WebOPAC versions prior to 4.0.0.320; versions later than 4.0.0.328. This issue does not affect: AlCoda NetBiblio WebOPAC version 4.0.0.335 and later versions.
Weakness: CWE-79
Which versions are affected by CVE-2021-42551?
It affects 1 product.
Products include Alcoda Netbiblio.
How do I fix CVE-2021-42551?
No fix has been published for CVE-2021-42551 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-2021-42551 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-42551 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-hrpc-fm5f-rg4v.