CVE-2026-40042 | Pachno 1.0.6 XML Parser simplexml_load_string file descriptor (ZSL-2026-5984)

VDB-357211 · CVE-2026-40042 · ZSL-2026-5984 PACHNO 1.0.6 XML PARSER SIMPLEXML_LOAD_STRING FILE DESCRIPTOR HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 8.4 $0-$5k 1.09+ Summaryinfo A vulnerability, which was classified as critical, has been found in Pachno 1.0.6. This affects the function simplexml_load_string of the component XML Parser. This manipulation causes file descriptor. This vulnerability is handled as CVE-2026-40042. The attack can be initiated remotely. There is not any exploit available. Detailsinfo A vulnerability classified as critical was found in Pachno 1.0.6. Affected by this vulnerability is the function simplexml_load_string of the component XML Parser. The manipulation with an unknown input leads to a file descriptor vulnerability. The CWE definition for the vulnerability is CWE-403. A process does not close sensitive file descriptors before invoking a child process, which allows the child to perform unauthorized I/O operations using those descriptors. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is: Pachno 1.0.6 contains an XML external entity injection vulnerability that allows unauthenticated attackers to read arbitrary files by exploiting unsafe XML parsing in the TextParser helper. Attackers can inject malicious XML entities through wiki table syntax and inline tags in issue descriptions, comments, and wiki articles to trigger entity resolution via simplexml_load_string() without LIBXML_NONET restrictions. The weakness was released by Gjoko Krstic as ZSL-2026-5984. It is possible to read the advisory at zeroscience.mk. This vulnerability is known as CVE-2026-40042 since 04/08/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around 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: 8.5 VulDB Meta Temp Score: 8.4 VulDB Base Score: 7.3 VulDB Temp Score: 7.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 9.8 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: File descriptor CWE: CWE-403 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-2026-5984 Researcher: Gjoko Krstic Status: Not defined CVE: CVE-2026-40042 (🔒) GCVE (CVE): GCVE-0-2026-40042 GCVE (VulDB): GCVE-100-357211 Entryinfo Created: 04/13/2026 21:44 Changes: 04/13/2026 21:44 (75) Complete: 🔍 Cache ID: 99:B6F:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸