CVE-2026-4509 | PbootCMS up to 3.2.12 File Upload core/function/file.php black incomplete blacklist

VDB-352075 · CVE-2026-4509 · GCVE-100-352075 PBOOTCMS UP TO 3.2.12 FILE UPLOAD CORE/FUNCTION/FILE.PHP BLACK INCOMPLETE BLACKLIST HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.7 $0-$5k 1.56+ Summaryinfo A vulnerability has been found in PbootCMS up to 3.2.12 and classified as critical. This impacts an unknown function of the file core/function/file.php of the component File Upload. This manipulation of the argument black causes incomplete blacklist. This vulnerability is registered as CVE-2026-4509. Remote exploitation of the attack is possible. Furthermore, an exploit is available. Detailsinfo A vulnerability has been found in PbootCMS up to 3.2.12 and classified as critical. Affected by this vulnerability is an unknown part of the file core/function/file.php of the component File Upload. The manipulation of the argument black with an unknown input leads to a incomplete blacklist vulnerability. The CWE definition for the vulnerability is CWE-184. The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete, leading to resultant weaknesses. As an impact it is known to affect confidentiality, integrity, and availability. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-4509. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1562.006 according to MITRE ATT&CK. It is possible to download the exploit at github.com. It is declared as proof-of-concept. By approaching the search of inurl:core/function/file.php it is possible to find vulnerable targets with Google Hacking. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Name PbootCMS Version 3.2.0 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3.2.7 3.2.8 3.2.9 3.2.10 3.2.11 3.2.12 License commercial CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 5.7 VulDB Base Score: 6.3 VulDB Temp Score: 5.7 VulDB Vector: 🔒 VulDB Reliability: 🔍 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: Incomplete blacklist CWE: CWE-184 / CWE-183 / CWE-20 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 Google Hack: 🔒 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 03/20/2026 Advisory disclosed 03/20/2026 +0 days VulDB entry created 03/20/2026 +0 days VulDB entry last update Sourcesinfo Advisory: github.com Status: Not defined CVE: CVE-2026-4509 (🔒) GCVE (CVE): GCVE-0-2026-4509 GCVE (VulDB): GCVE-100-352075 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/20/2026 15:31 Changes: 03/20/2026 15:31 (55) Complete: 🔍 Submitter: zmjjkk Cache ID: 99:0FD:101 Submitinfo Accepted Submit #773901: 翱云科技 PbootCMS 3.2.12 Incomplete Identification of Uploaded File Variables (by zmjjkk) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸