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Description

A security flaw has been discovered in Dolibarr ERP CRM up to 23.0.2. This vulnerability affects the function dol_verifyHash in the library htdocs/core/lib/security.lib.php of the component Online Signature Module. The manipulation results in improper verification of cryptographic signature. The attack may be performed from remote. Attacks of this nature are highly complex. It is stated that the exploitability is difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

PUBLISHED Reserved 2026-05-02 | Published 2026-05-03 | Updated 2026-05-03 | Assigner VulDB




MEDIUM: 6.3CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
LOW: 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
LOW: 3.7CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
2.6AV:N/AC:H/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR

Problem types

Improper Verification of Cryptographic Signature

Insufficient Verification of Data Authenticity

Product status

23.0.0
affected

23.0.1
affected

23.0.2
affected

Timeline

2026-05-02:Advisory disclosed
2026-05-02:VulDB entry created
2026-05-02:VulDB entry last update

Credits

yan1451 (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/360859 (VDB-360859 | Dolibarr ERP CRM Online Signature security.lib.php dol_verifyHash signature verification) vdb-entry technical-description

vuldb.com/vuln/360859/cti (VDB-360859 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/801794 (Submit #801794 | Dolibarr Dolibarr ERP/CRM 23.0.2 Authentication Bypass Issues) third-party-advisory

gist.github.com/Shaon-Xis/d6ae069fc54f006457b68a91d5a8e158 exploit

cve.org (CVE-2026-7689)

nvd.nist.gov (CVE-2026-7689)

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