CVE-2026-76635

baserCMS before 5.3.0 contains a SQL injection vulnerability in BcDatabaseService.php that allows authenticated administrators to inject attacker-controlled table names and configuration values directly into SQL statements across sequence update, CSV export, and table management operations. Attackers can chain a backup restore code injection flaw, where PHP code outside class definitions in schema files executes unconditionally upon loading, to plant malicious table names and trigger error-based SQL injection that retrieves database version, schema contents, and arbitrary data from the PostgreSQL backend.

CVSS 4.0

8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.2CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-25)

CWEs

CWE-89, CWE-94

Published

2026-08-20

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

References

• https://github.com/baserproject/basercms/releases/tag/5.3.0
• https://github.com/baserproject/basercms/security/advisories/GHSA-cg65-f2m7-9fqj
• https://www.vulncheck.com/advisories/basercms-sql-injection-and-code-injection-via-bcdatabaseservice-php
• https://github.com/baserproject/basercms/security/advisories/GHSA-cg65-f2m7-9fqj

Check your stackJSON