EUVD-2026-62451
GHSA-m98p-5698-x2wc
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/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:X/V:X/RE:X/U:X
FAQ editor role (PR:L) is required over network; no integrity or availability impact applies, and scope is unchanged.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/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:X/V:X/RE:X/U:X
Lifecycle Timeline
3DescriptionCVE.org
phpMyFAQ before 4.1.7 does not adequately sanitize HTML in FAQ answers before generating PDFs via TCPDF. An attacker with permission to create or edit FAQ content can embed an <img> tag whose src references a local file under the web root's content/ directory (e.g., content/core/config/database.php). When the PDF is generated, phpMyFAQ attempts to read the referenced file; because it is not a valid image the resulting error is converted into an uncaught exception whose stack trace discloses part of the file's contents to any user who triggers the PDF export. By default the disclosed portion is truncated (zend.exception_string_param_max_len), but a larger configured value can result in disclosure of entire files, including database credentials.
AnalysisAI
Local file disclosure in phpMyFAQ before 4.1.7 is triggered through unsanitized HTML in FAQ answers when PDF documents are generated via TCPDF. Any user holding FAQ creation or editing rights can embed an img tag whose src attribute references a local file within the content/ directory - when PDF export runs, TCPDF fails to parse the target as an image and raises an uncaught exception whose stack trace exposes a portion of the file's raw contents, potentially including database credentials stored in content/core/config/database.php. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must hold an active phpMyFAQ account with FAQ creation or editing permissions - this is the essential, non-negotiable prerequisite. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N) places this firmly in the high-severity tier: the attack is network-reachable, requires no elevated complexity or additional attack preconditions, and demands only low-privilege access in the form of a FAQ editor account. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has obtained FAQ editor access on a community phpMyFAQ instance - through open self-registration or compromised credentials - creates a FAQ answer containing an img tag with its src set to content/core/config/database.php. The attacker then triggers a PDF export of that FAQ, causing TCPDF to read the PHP configuration file as though it were an image; the resulting parse failure raises an uncaught exception whose stack trace is returned in the HTTP response, disclosing the database hostname, username, and password. … |
| Remediation | The primary remediation is to upgrade phpMyFAQ to version 4.1.7 or later, as specified in the vendor security advisory at https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-c63q-xx7x-j8w2. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all phpMyFAQ installations, determine current versions, and enumerate users with FAQ creation or editing permissions. …
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External POC / Exploit Code
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