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  4. CVE 2026 78293 wordpress wp w3all phpbb plugin 306 cross site
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Back to active CVEs
High · CVSS 7.1CVE-2026-78293

WordPress WP w3all phpBB plugin <= 3.0.6 - Cross Site Scripting (XSS) vulnerabilityCVE-2026-78293

Answer in brief

CVE-2026-78293 records a High severity (CVSS 7.1) vulnerability in WordPress WP w3all phpBB plugin <= 3.0.6 - Cross Site Scripting (XSS) vulnerability. The current sources do not mark it as known exploited. The current feed maps axew3/WP w3all phpBB (generic), axew3/WP w3all phpBB (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 27, 2026Updated Aug 28, 2026Source checked Oct 11, 2026First seen by HOL Aug 27, 2026Material review Aug 28, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.1
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps axew3/WP w3all phpBB (generic), axew3/WP w3all phpBB (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
axew3/WP w3all phpBBgenericn/aNot reported
axew3/WP w3all phpBBgeneric>=n/a <=3.0.6Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for axew3/WP w3all phpBB, axew3/WP w3all phpBB.
  2. 2Review the reported fix. Source-reported solution: Update the WordPress WP w3all phpBB Plugin to the latest available version (at least 3.0.7).

Evidence timeline and material changes

  1. Published upstream

    Aug 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 27, 2026

Sources and claim methodology

  • Source referencepatchstack.com
Upstream source description

Unauthenticated Cross Site Scripting (XSS) in WP w3all phpBB <= 3.0.6 versions.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Deep Chat through 2.5.1 XSS via Markdown Link Validation BypassAlso CWE-79
  • Channel tokens and organization API key exposed in API responsesSame generic ecosystem
  • zhayujie CowAgent Web Console upload read denial of serviceSame generic ecosystem
  • zhayujie CowAgent Media Download memory allocationSame generic ecosystem
  • erzhongxmu Jeewms Autocomplete Data JeecgFormDemoController.java getTreeData sql injectionSame generic ecosystem
  • hyper-mcp through 0.8.3 Improper Signature Verification of OCI WebAssembly PluginsSame generic ecosystem

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 11, 2026
References
1 linked source
Open source record