CVE-2020-23234 Cross Site Scripting in LavaLite CMS

What is CVE-2020-23234?

CVE-2020-23234 is a medium-severity cross-site scripting vulnerability in n/a, published on 26 Jul 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Cross Site Scripting (XSS) vulnerabiity exists in LavaLite CMS 5.8.0 via the Menu Blocks feature, which can be bypassed by using HTML event handlers, such as "ontoggle,".

Weakness: CWE-79

Which versions are affected by CVE-2020-23234?

2 open source packages ship an affected version, including lavalite/cms. It affects 1 product.

Products include Lavalite Lavalite.

How do I fix CVE-2020-23234?

No fix has been published for CVE-2020-23234 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-2020-23234 being exploited?

There is no known exploitation of CVE-2020-23234 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2023-27238 LavaLite vulnerable to web cache poisoning Critical 9.8
• CVE-2025-70866 Auth bypass in n/a High 8.8
• CVE-2023-36983 Information disclosure in n/a High 7.5
• CVE-2023-36984 Information disclosure in n/a High 7.5
• CVE-2022-42188 Lavalite vulnerable to Arbitrary File Read via Directory Traversal High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-v2f3-f8x4-m3w8.