CVE-2026-40867 | horilla-opensource horilla 1.5.0 Attachments access control
VulDBArchived Apr 21, 2026✓ Full text saved
A vulnerability has been found in horilla-opensource horilla 1.5.0 and classified as critical . Affected by this issue is some unknown functionality of the component Attachments Handler . Performing a manipulation results in improper access controls. This vulnerability is reported as CVE-2026-40867 . The attack is possible to be carried out remotely. No exploit exists.
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✦ AI Summary· Claude Sonnet
VDB-358558 · CVE-2026-40867 · GCVE-0-2026-40867
HORILLA-OPENSOURCE HORILLA 1.5.0 ATTACHMENTS ACCESS CONTROL
HISTORYDIFFRELATEJSONXMLCTI
CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score
4.3 $0-$5k 1.74+
Summaryinfo
A vulnerability was found in horilla-opensource horilla 1.5.0 and classified as critical. This affects an unknown part of the component Attachments Handler. Executing a manipulation can lead to access control. This vulnerability appears as CVE-2026-40867. The attack may be performed from remote. There is no available exploit.
Detailsinfo
A vulnerability was found in horilla-opensource horilla 1.5.0. It has been declared as critical. This vulnerability affects an unknown code of the component Attachments Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality. CVE summarizes:
Horilla is a free and open source Human Resource Management System (HRMS). In 1.5.0, a broken access control vulnerability in the helpdesk attachment viewer allows any authenticated user to view attachments from other tickets by changing the attachment ID. This can expose sensitive support files and internal documents across unrelated users or teams.
The advisory is available at github.com. This vulnerability was named CVE-2026-40867 since 04/15/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/21/2026). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Productinfo
Vendor
horilla-opensource
Name
horilla
Version
1.5.0
CPE 2.3info
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CPE 2.2info
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CVSSv4info
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3info
VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3
VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2info
Vector Complexity Authentication Confidentiality Integrity Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploitinginfo
Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
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Threat Intelligenceinfo
Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍
Countermeasuresinfo
Recommended: no mitigation known
Status: 🔍
0-Day Time: 🔒
Timelineinfo
04/15/2026 CVE reserved
04/21/2026 +6 days Advisory disclosed
04/21/2026 +0 days VulDB entry created
04/21/2026 +0 days VulDB entry last update
Sourcesinfo
Advisory: github.com
Status: Confirmed
CVE: CVE-2026-40867 (🔒)
GCVE (CVE): GCVE-0-2026-40867
GCVE (VulDB): GCVE-100-358558
Entryinfo
Created: 04/21/2026 20:57
Changes: 04/21/2026 20:57 (65)
Complete: 🔍
Cache ID: 99:531:101
Discussion
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