← Vulnerability feed

Vulnerability record · CVE-2023-53894 · published 16 December 2025

CVE-2023-53894: Dulldusk phpfilemanager vulnerability

Dulldusk · Phpfilemanager

phpfm 1.7.9 contains an authentication bypass vulnerability that allows attackers to log in by exploiting loose type comparison in password hash validation. Attackers can craft specific password hashes beginning with 0e or 00e to bypass authentication and upload malicious PHP files to the server.

9.3 CVSS 4.0 Critical EPSS 0.62% · top 52.3% CWE-1390 · CWE-1390
9.3CVSS 4.0 base score
0.62%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

phpfm 1.7.9 contains an authentication bypass vulnerability that allows attackers to log in by exploiting loose type comparison in password hash validation. Attackers can craft specific password hashes beginning with 0e or 00e to bypass authentication and upload malicious PHP files to the server.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.dulldusk.com/phpfm/ Product
https://www.exploit-db.com/exploits/51594 ExploitThird Party Advisory
https://www.vulncheck.com/advisories/phpfm-authentication-bypass-via-type-juggling-vulnerability Third Party Advisory

Track CVE-2023-53894 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

6.9CVE-2019-25632Dulldusk phpfilemanager missing authentication for critical function vulnerabilityphpFileManager 1.7.8 contains a local file inclusion vulnerability that allows unauthenticated attackers to read arbitrary files by manipulating the …EPSS 0.56%6.1CVE-2024-5673Dulldusk phpfilemanager cross-site scripting vulnerabilityVulnerability in Dulldusk's PHP File Manager affecting version 1.7.8. This vulnerability consists of an XSS through the fm_current_dir parameter of i…EPSS 0.25%9.1CVE-2026-55040Microsoft SharePoint weak authentication allows network security feature bypassMicrosoft SharePoint Server contains a weak authentication flaw (CWE-1390) that lets an unauthorized attacker bypass a security feature over the netw…KEVEPSS 18%analysed

Source: NIST National Vulnerability Database (record CVE-2023-53894), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.