CVE-2026-112783

Medium

Description

OpenCATS before 0.10.0 contains a missing authorization vulnerability in ajax/deleteActivity.php and ajax/editActivity.php that allows READ-level users to edit and delete activity entries. Authenticated attackers can supply an arbitrary activityID via GET or POST to modify or delete activity and pipeline history for candidates, contacts and companies.

SeverityMedium

CVSS4.3

Exploit probability—

ProductOpenCATS

PublishedOct 20, 2026

First seenOct 20, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

opencats OpenCATS0.10.0 or later

Patches

github.com/opencats/OpenCATS/commit/aa3b414c3672f5010ca26c44192aa8e72d3735bd

Vendor advisories

github.com/opencats/OpenCATS/releases/tag/v0.10.0

Affected products

Product	Affected versions	Fixed in
opencats OpenCATS	v < 0.10.0	0.10.0

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