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CVE-2026-107756

Meow Lightbox <= 5.6.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Output Buffering parser noise substitution via comment body + display_name

CVSS score

6.4

EPSS probability

%0.3

Risk score

0.0

Published

15 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

Meow Lightbox <= 5.6.2 Authenticated Stored XSS Vulnerability

Sources read

2

Source agreement

Tam uyum

Evidence confidence

%63

Short explanation

The Meow Lightbox plugin contains an Authenticated Stored Cross-Site Scripting vulnerability due to insufficient input sanitization and output escaping.

Why does it matter?

This vulnerability can be exploited when the plugin's Output Buffering option is enabled and the attacker has at least one previously approved comment.

What should be done?

  • Follow vendor advisories and updates
  • Consider disabling the plugin's Output Buffering feature
Chain of evidence and sources2 verified claims

Meow Lightbox 5.6.2 ve önceki sürümleri, display_name ve comment parametreleri üzerinden Saklı XSS açığı barındırmaktadır.

S0 · daybreach-canonicalS1 · cvelistS2 · nvd

Bu güvenlik açığı, eklentinin Çıktı Arabelleğe Alma seçeneği etkinken ve abone düzeyinde erişimle tetiklenebilir.

S0 · daybreach-canonical
Show the technical text from the sources

The Meow Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'display_name + comment' parameter in all versions up to, and including, 5.6.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is only exploitable when the plugin's Output Buffering option is enabled (disabled by default), and requires the attacker to have at least one previously approved comment on the site so that subsequent comments are auto-approved by WordPress core.

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

CWE: CWE-79

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-107756 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1tigroumeowMeow Lightbox View
Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
6.4CVSS V3_1MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:NCVE CNA
6.4CVSS V31MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:NNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-107756 is associated with the following CWEs:

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-107756 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsLow
UserGerekmiyor

Official Sources and Advisories

https://www.wordfence.com/threat-intel/vulnerabilities/id/69de4c0b-fda4-4dd0-80ae-2cdd53fc581b?source=cvevendor-advisoryhttps://plugins.trac.wordpress.org/browser/meow-lightbox/tags/5.6.2/vendor/kub-at/php-simple-html-dom-parser/src/KubAT/PhpSimple/lib/simple_html_dom.php#L503vendor-advisoryhttps://plugins.trac.wordpress.org/browser/meow-lightbox/tags/5.6.2/vendor/kub-at/php-simple-html-dom-parser/src/KubAT/PhpSimple/lib/simple_html_dom.php#L2112vendor-advisoryhttps://plugins.trac.wordpress.org/browser/meow-lightbox/tags/5.6.2/vendor/kub-at/php-simple-html-dom-parser/src/KubAT/PhpSimple/lib/simple_html_dom.php#L2207vendor-advisoryhttps://plugins.trac.wordpress.org/browser/meow-lightbox/tags/5.6.2/vendor/kub-at/php-simple-html-dom-parser/src/KubAT/PhpSimple/lib/simple_html_dom.php#L1531vendor-advisoryhttps://plugins.trac.wordpress.org/browser/meow-lightbox/tags/5.6.2/classes/core.php#L1115vendor-advisoryhttps://plugins.trac.wordpress.org/browser/meow-lightbox/tags/5.6.2/classes/core.php#L1087vendor-advisoryhttps://plugins.trac.wordpress.org/browser/meow-lightbox/tags/5.6.2/classes/core.php#L1277vendor-advisoryhttps://plugins.trac.wordpress.org/browser/meow-lightbox/tags/5.6.2/classes/core.php#L57vendor-advisoryhttps://plugins.trac.wordpress.org/changeset/3737480/meow-lightboxvendor-advisory

CVSS Vector Radar Chart

6.4 / 10
Attack VectorNetworkComplexityLowPrivilegesLowUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityNone

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow privileges
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)None

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

T
tigroumeow logo
tigroumeow

Weakness Type (CWE & CAPEC)

CWE-79

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