opf openproject up to 17.3.2/17.4.0 POST Parameter cross-site request forgery

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in opf openproject up to 17.3.2/17.4.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component POST Parameter Handler. The manipulation results in cross-site request forgery. This vulnerability is reported as CVE-2026-52784. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in opf openproject up to 17.3.2/17.4.0. It has been classified as problematic. Affected is some unknown processing of the component POST Parameter Handler. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on integrity. CVE summarizes:

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, there is a CSRF on TARGET through /users/:id via POST parameter "user[admin]". This vulnerability is fixed in 17.3.3 and 17.4.1.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-52784 since 06/08/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading to version 17.3.3 or 17.4.1 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: openproject 17.3.3/17.4.1

Timelineinfo

06/08/2026 CVE reserved
06/26/2026 +18 days Advisory disclosed
06/26/2026 +0 days VulDB entry created
06/26/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-52784 (🔒)
GCVE (CVE): GCVE-0-2026-52784
GCVE (VulDB): GCVE-100-374352

Entryinfo

Created: 06/26/2026 22:20
Changes: 06/26/2026 22:20 (65)
Complete: 🔍
Cache ID: 216::103

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