CVE-2026-40043 | Pachno 1.0.6 runSwitchUser authorization (ZSL-2026-5985)

VDB-357210 · CVE-2026-40043 · ZSL-2026-5985 PACHNO 1.0.6 RUNSWITCHUSER AUTHORIZATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.3 $0-$5k 0.73+ Summaryinfo A vulnerability classified as problematic was found in Pachno 1.0.6. The impacted element is the function runSwitchUser. The manipulation results in authorization. This vulnerability is known as CVE-2026-40043. It is possible to launch the attack remotely. No exploit is available. Detailsinfo A vulnerability classified as problematic has been found in Pachno 1.0.6. Affected is the function runSwitchUser. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. This is going to have an impact on confidentiality. CVE summarizes: Pachno 1.0.6 contains an authentication bypass vulnerability in the runSwitchUser() action that allows authenticated low-privilege users to escalate privileges by manipulating the original_username cookie. Attackers can set the client-controlled original_username cookie to any value and request a switch to user ID 1 to obtain session tokens or password hashes belonging to administrator accounts. The weakness was published by Gjoko Krstic as ZSL-2026-5985. The advisory is available at zeroscience.mk. This vulnerability is traded as CVE-2026-40043 since 04/08/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/13/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Name Pachno Version 1.0.6 CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 5.4 VulDB Meta Temp Score: 5.3 VulDB Base Score: 4.3 VulDB Temp Score: 4.2 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 6.5 CNA Vector (VulnCheck): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Authorization CWE: CWE-639 / CWE-285 / CWE-266 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/08/2026 CVE reserved 04/13/2026 +5 days Advisory disclosed 04/13/2026 +0 days VulDB entry created 04/13/2026 +0 days VulDB entry last update Sourcesinfo Advisory: ZSL-2026-5985 Researcher: Gjoko Krstic Status: Not defined CVE: CVE-2026-40043 (🔒) GCVE (CVE): GCVE-0-2026-40043 GCVE (VulDB): GCVE-100-357210 Entryinfo Created: 04/13/2026 21:44 Changes: 04/13/2026 21:44 (75) Complete: 🔍 Cache ID: 99:B5F:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸