Home/CVE/baserCMS is a website development framework. Prior to version 5.2.3, baserCMS has a cross-site scripting vulnerability i
CVE

CVE-2026-30879

baserCMS is a website development framework. Prior to version 5.2.3, baserCMS has a cross-site scripting vulnerability i

baserCMS is a website development framework. Prior to version 5.2.3, baserCMS has a cross-site scripting vulnerability in blog posts. This issue has been patched in version 5.2.3.

MEDIUM · CVSS 6.1 EPSS 0.00012
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

1
basercms< 5.2.3
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Packagist baserproject/basercms MEDIUM fixed in 5.2.3
▣

Scoring & Timeline

6.1
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD31 Mar 2026 · 01:16 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://basercms.net/security/JVN_20837860Vendor Advisory
https://github.com/baserproject/basercms/releases/tag/5.2.3Release Notes
https://github.com/baserproject/basercms/security/advisories/GHSA-jmq3-x8q7-j9qmVendor Advisory
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