CVE-2020-12639
phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.
phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.
- Record
CVE-2020-12639- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.
- Record
CVE-2020-12639- Updated
- 2026-11-02
EUVDEUVD-2020-4940 No score
phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.
- Record
EUVD-2020-4940- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-43p3-w85x-8jw6 No score
phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.
phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.
- Record
GHSA-43p3-w85x-8jw6- Updated
- 2026-11-02
OSV
phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.
- Record
CVE-2020-12639- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVBIT-phplist-2020-12639 No score
phpList before 3.5.3 allows XSS, with resultant privilege elevation, via lists/admin/template.php.
- Record
BIT-phplist-2020-12639- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
phplistBitnami |
before 3.5.3 | 3.5.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-12639 is a medium vulnerability (CVSS 6.1) in Phplist, published May 4, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.70%, the 53rd percentile. Fixed in phplist 3.5.3.