CVE-2020-12438 json
An XSS vulnerability exists in the banners.php page of PHP-Fusion 9.03.50.
published 2020-04-28 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-4750
- cvss
- 5.4
- 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 48%
- public exploits
- 0
- none known
Summary
An XSS vulnerability exists in the banners.php page of PHP-Fusion 9.03.50. This can be exploited because the only security measure used against XSS is the stripping of SCRIPT tags. A malicious actor can use HTML event handlers to run JavaScript instead of using SCRIPT tags.
Patch / fix
Exploit prediction
0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/php-fusion/PHP-Fusion/issues/2307 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/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 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/php-fusion/PHP-Fusion/commit/c36006f900d855f1173f81cea1a774295049f4d8
patch, third-party-advisory
-
github.com
/php-fusion/PHP-Fusion/issues/2307
exploit, third-party-advisory
Sources
- CVE List CVE-2020-12438
- NVD CVE-2020-12438
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