CVE-2020-23234 json
Cross Site Scripting in LavaLite CMS
published 2021-07-26 5 y ago modified 2026-06-17 4 mo ago also GHSA-v2f3-f8x4-m3w8 , EUVD-2021-1879
- cvss
- 4.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
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,".
Exploit prediction
0.62% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/LavaLite/cms/issues/320 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| GitHub | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | lavalite/cms | <=5.8.0 |
no fix listed |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/LavaLite/cms/issues/320
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-23234
advisory
Sources
- CVE List CVE-2020-23234
- GitHub Advisory GHSA-v2f3-f8x4-m3w8
- NVD CVE-2020-23234
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