CVE-2020-15276 json
Cross Site Scripting in baserCMS
published 2020-10-30 6 y ago modified 2026-07-08 4 mo ago also GHSA-fw5q-j9p4-3vxg , EUVD-2020-1429
- cvss
- 7.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. Arbitrary JavaScript may be executed by entering a crafted nickname in blog comments. The issue affects the blog comment component. It is fixed in version 4.4.1.
Patch / fix
- packagist baserproject/basercms 4.4.1
- basercms basercms 4.4.1
Exploit prediction
1.00% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N |
| NVD | 3.1 | 8.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| GitHub | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | baserproject/basercms | >=4.4.0, <4.4.1 |
4.4.1 |
Affected products
- baserproject basercms
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/baserproject/basercms/commit/d14f506385f21d67d5ff3462f204d4c2321b7c54
web, patch, third-party-advisory
-
github.com
/baserproject/basercms/security/advisories/GHSA-fw5q-j9p4-3vxg
web, patch, third-party-advisory
-
basercms.net
/security/20201029
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-15276
advisory
Sources
- CVE List CVE-2020-15276
- GitHub Advisory GHSA-fw5q-j9p4-3vxg
- NVD CVE-2020-15276
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