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mediumRemote Code Exec

CVE-2026-76210

CVE-2026-76210 — phpMyFAQ before v4.1.6 Local File Disclosure via PDF Export

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.

Published Updated Sources: NVD, thorsten (CNA), GitHub, GitHub Security Advisory, SOCRadar CTI

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.

Exploitation

Unreported

no source claims exploitation

EPSS

0%

ahead of 0% of scored CVEs

Affects

thorsten

2 products listed

CVSS base

6.5

medium · 2 sources

Remediation

The vendor's own words where we have them.

Upgrade phpMyFAQ to a fixed release (4.1.6). Apply vendor patches per advisory and restrict external exposure of the affected component until patched.

First 24 hours

Ordered from the record's own fields — exposure first, because you cannot patch what you have not found.

  • Identify exposed assets running affected vendor/product/version combinations.
  • Prioritize based on EPSS, PoC availability, and external exposure.
  • Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class.

Affected scope

Vendor, product and version as the advisories word them.

VendorProductVersionsStatus
thorstenphpMyFAQ0 to < 4.1.6Vulnerable
thorstenphpMyFAQ4.1.6Patched

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Availability

None

Confidentiality

High

Integrity

None

Scope

Unchanged

Attack Complexity

Low

Attack Vector

Network

Privileges Req

Low

User Interaction

None

Every base score collected

Sources score independently and disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactSource
6.5CVSS 3.1medium2.83.6NVD, thorsten (CNA), GHSA
7.1CVSS 4.0highthorsten (CNA)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

What this weakness leads to

MITRE's own consequences and mitigations for the weakness class — the authority's wording, not guidance derived from the CVSS vector.

MITRE

CWE-73 · External Control of File Name or Path

  • Read Files or Directories
  • Modify Files or Directories
  • Execute Unauthorized Code or Commands
  • DoS: Crash, Exit, or Restart

Mitigation: When the set of filenames is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames, and reject all other inputs. For example, ID 1 could map to inbox.txt and ID 2 could map to profile.txt. Features such as the ESAPI AccessReferenceMap provide this capability.

Weakness & attack patterns

  • CWE-73

Attack patterns reported against this CVE. The ATT&CK techniques below are inferred from its weakness class.

CAPEC-13 · Subverting Environment Variable ValuesCAPEC-72 · URL EncodingCAPEC-76 · Manipulating Web Input to File System CallsCAPEC-80 · Using UTF-8 Encoding to Bypass Validation LogicCAPEC-79 · Using Slashes in Alternate EncodingCAPEC-64 · Using Slashes and URL Encoding Combined to Bypass Validation LogicCAPEC-267 · Leverage Alternate EncodingCAPEC-78 · Using Escaped Slashes in Alternate Encoding
  • T1562.003Impair Defenses: Impair Command History Logging
  • T1574.006Hijack Execution Flow: Dynamic Linker Hijacking
  • T1574.007Hijack Execution Flow: Path Interception by PATH Environment Variable

Detection

Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.

  • Search application, proxy, and WAF logs for requests touching /core/config/database.php).
  • Prioritize edge telemetry for network-reachable phpMyFAQ.
web/proxy/WAF logsapplication logsnetwork IDS/IPSEDR process telemetryhost service logs

Timeline

What happened to this CVE, newest first — with the readings a source repeats on a schedule counted underneath rather than listed.

  1. 2026
  2. Added · CVSS 3.1 6.5 (AV:N)

    Aug 19, 2026 · NVD

  3. Initial · CVE published

    Aug 19, 2026 · NVD

  4. Added · GHSA-m98p-5698-x2wc published (high)

    Aug 19, 2026 · GitHub Security Advisory

References

4 on the record

Elsewhere on this site

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record1

What should defenders know first?

CVE-2026-76210 is phpMyFAQ before v4.1.6 Local File Disclosure via PDF Export, a medium vulnerability affecting phpMyFAQ from thorsten. The current evidence does not list it in CISA KEV, and the exploit status is: Active exploitation is not confirmed from current sources for CVE-2026-76210. Public exploit evidence is: A public PoC is not confirmed from current sources for CVE-2026-76210. The affected-version evidence is listed in the key facts and affected products tables. Defenders should first verify whether exposed or business-critical assets run those versions, then apply vendor patches or mitigations, restrict reachable attack surface, and preserve logs for detection review. CVSS 6.5 describes technical severity, while EPSS 0% helps estimate near-term exploit likelihood; neither replaces asset context. Unknown fields should remain explicit in tickets, and threat actor, IOC, victimology, or payload claims should not be added unless a cited source supports them. Monitor CISA KEV, vendor advisories, NVD changes, public PoC repositories, and internal telemetry for update triggers.