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CVE-2026-112783— OpenCATS before 0.10.0 Missing Authorization via Activity AJAX Endpoints

Quick assessment

Affected
opencats OpenCATS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenCATS 0.10.0 之前的版本在 和 文件中存在缺少授权控制的漏洞，允许具有 READ（只读）权限的用户编辑和删除活动记录。已认证的攻击者可通过 GET 或 POST 请求提交任意 ，从而篡改或删除候选人、联系人及公司的活动记录与管道历史。

CVSS 4.3 · Medium
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I. Basic Information for CVE-2026-112783

Vulnerability Information
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Vulnerability Title
OpenCATS before 0.10.0 Missing Authorization via Activity AJAX Endpoints
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
opencats OpenCATS 0 ~ 0.10.0 -

II. Public POCs for CVE-2026-112783

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III. Intelligence Information for CVE-2026-112783

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Patches & Fixes for CVE-2026-112783 (2)

Vendor Advisories for CVE-2026-112783 (1)

Proof of Concept for CVE-2026-112783 (2)

Vendor Pages for CVE-2026-112783 (1)

Same Patch Batch · opencats · 2026-10-20 · 6 CVEs total

CVE-2026-112786 5.4 MEDIUM OpenCATS before 0.10.0 Missing Authorization via Import Revert Action
CVE-2026-112787 4.3 MEDIUM OpenCATS before 0.10.0 Missing Authorization in Reports Module EEO Reports
CVE-2026-112784 4.3 MEDIUM OpenCATS before 0.10.0 Missing Authorization via ajax/testEmailSettings.php
CVE-2026-112785 4.3 MEDIUM OpenCATS before 0.10.0 Missing Authorization in Saved-List AJAX Endpoints
CVE-2026-113349 4.3 MEDIUM OpenCATS before 0.10.0 Missing Authorization in Calendar editEvent/deleteEvent

IV. Related Vulnerabilities

Same product: OpenCATS
Same vendor: opencats
Same weakness: CWE-862

V. Comments for CVE-2026-112783

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