OpenCATS: Authenticated SQL injection in activity DataGrid date filters

published 2026-10-28 11 d ago modified 2026-10-29 10 d ago also EUVD-2026-112509

cvss: 7.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 16%
public exploits: 0; none known

OpenCATS is an open-source applicant tracking system and recruitment CRM for staffing agencies and hiring teams. Prior to version 0.10.0, activity DataGrid date filtering in `home:CallsDataGrid` and `activity:ActivityDataGrid` uses request-controlled `period`, `startDate` and `endDate` parameters without sufficient validation or escaping. The vulnerable code is in `modules/home/dataGrids.php` and `modules/activity/dataGrids.php`. The `startDate` and `endDate` values are inserted into SQL string comparisons without safe escaping, and `period` can directly influence generated SQL. An authenticated user with access to the affected DataGrid endpoints can alter the intended query to access sensitive database contents, including user account data, candidate records, contact details, company information, job orders and activity history. A valid OpenCATS login is required; unauthenticated exploitation is not established. This issue is fixed in version 0.10.0.

Patch / fix

links 1

github.com/opencats/OpenCATS@814542d commit

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 10 d ago (2026-10-29)

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.6	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

Affected products

opencats OpenCATS

Classification

Weakness

CWE-20 Improper Input Validation
CWE-89 Improper Neutralization of Special Elements used in an SQL Command

References

Sources

CVE List CVE-2026-54455
NVD CVE-2026-54455

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Summary