CVE-2020-12639 json
phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.
published 2020-05-04 6 y ago modified 2026-06-17 4 mo ago also BIT-phplist-2020-12639 , EUVD-2020-4940
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 53%
- public exploits
- 0
- none known
Summary
phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.
Patch / fix
- bitnami phplist 3.5.3
- phplist phplist 3.5.3
Exploit prediction
0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| OSV | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | phplist | <3.5.3 |
3.5.3 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
phplist.org
/newslist/phplist-3-5-3-release-notes/
release-notes, vendor-advisory, web
-
github.com
/phpList/phplist3/compare/3.5.2...3.5.3
release-notes, third-party-advisory, web
Sources
- CVE List CVE-2020-12639
- NVD CVE-2020-12639
- OSV BIT-phplist-2020-12639
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.