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CVE-2023-29009: basercms XSS Vulnerability via Favorites Feature

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-27 · updated 2026-06-17
• Weakness: CWE-79

Description

baserCMS is a website development framework with WebAPI that runs on PHP8 and CakePHP4. There is a XSS Vulnerability in Favorites Feature to baserCMS. This issue has been patched in version 4.8.0.

Affected products

• baserproject basercms: before 4.8.0 — fixed in 4.8.0

How to fix

Upgrade to a fixed version: baserproject basercms 4.8.0. Check the vendor advisory for mitigations.

References

• https://basercms.net/security/JVN_45547161
• https://github.com/baserproject/basercms/releases/tag/basercms-4.8.0
• https://github.com/baserproject/basercms/security/advisories/GHSA-8vqx-prq4-rqrq
• https://basercms.net/security/JVN_45547161
• https://github.com/baserproject/basercms/releases/tag/basercms-4.8.0
• https://github.com/baserproject/basercms/security/advisories/GHSA-8vqx-prq4-rqrq

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