CVE-2020-15155 json
Cross-Site Scripting in baserCMS
published 6y ago modified last mo. also GHSA-4r3m-j6x5-48m3 , EUVD-2020-0591
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
baserCMS 4.3.6 and earlier is affected by Cross Site Scripting (XSS) via arbitrary script execution. Admin access is required to exploit this vulnerability. The affected components is toolbar.php. The issue is fixed in version 4.3.7.
Patch / fix
- packagist baserproject/basercms 4.3.7
- baserproject basercms < 4.3.7
Is CVE-2020-15155 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.29% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N |
| NVD | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N |
| NVD | 2.0 | 2.1 | AV:N/AC:H/Au:S/C:N/I:P/A:N |
| GitHub | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | baserproject/basercms | >=4.0.0, <4.3.7 |
4.3.7 |
Affected products
- baserproject basercms
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/baserproject/basercms/commit/94cbfab74c9fd6d04492597a1a684674c3c0e30f
web, patch, third-party-advisory
-
github.com
/baserproject/basercms/security/advisories/GHSA-4r3m-j6x5-48m3
web, patch, third-party-advisory
-
basercms.net
/security/20200827
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-15155
advisory
Sources
- CVE List CVE-2020-15155
- GitHub Advisory GHSA-4r3m-j6x5-48m3
- NVD CVE-2020-15155
Fencer Intel 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.