CVE-2020-36399 json
A stored cross site scripting (XSS) vulnerability in phplist 3.5.4 and below allows attackers to execute arbitrary web scripts or HTML via…
published 2021-07-02 5 y ago modified 2026-06-17 4 mo ago also BIT-phplist-2020-36399 , EUVD-2020-23927
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
A stored cross site scripting (XSS) vulnerability in phplist 3.5.4 and below allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the "rule1" parameter under the "Bounce Rules" module.
Patch / fix
Exploit prediction
0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/phpList/phplist3/issues/675 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 |
| OSV | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | phplist | <3.5.4 |
3.5.4 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/phpList/phplist3/issues/675
exploit, issue-tracking, patch, third-party-advisory, web
Sources
- CVE List CVE-2020-36399
- NVD CVE-2020-36399
- OSV BIT-phplist-2020-36399
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.