Broken Link Checker <= 2.4.13 - Unauthenticated Stored Cross-Site Scripting via Comment Author URL / Link Log
CVSS score
7.2
EPSS probability
%0.5
Risk score
0.0
Published
1 mo ago
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Impact on My Inventory
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
2
Source agreement
Tam uyum
Evidence confidence
%58
Short explanation
The Broken Link Checker plugin for WordPress is vulnerable to stored cross-site scripting in versions up to 2.4.13 due to inadequate input sanitization and output escaping. Exploitation requires an administrator to perform a specific workflow on an attacker-submitted link, after which a malicious redirect is issued. No patch status is confirmed in available sources.
This allows unauthenticated attackers to inject and execute scripts in user-facing pages, leading to persistent XSS. The attack requires administrative interaction, but once triggered, it enables long-term compromise of user sessions. No official patch status is available, increasing exposure risk.
What should be done?
- Upgrade to a version beyond 2.4.13 if available.
- Follow official vendor advisories for patch details.
- No fixed version is publicly documented in the evidence.
The sources give limited detail on some technical conditions. Review the chain of evidence below before deciding how to act.
Chain of evidence and sources
WordPress'te Broken Link Checker eklemesi, tüm 2.4.13 ve altında sürümlerde, Yorum Yazar URL / Link Log alanına dair girdi temizleme ve çıktı kaçırma eksikliği nedeniyle saklı bir cross-site scripting (XSS) hatası içerir.
İstismar, bir saldırıcının WordPress yorum yazar URL alanına gönderdiği bir link üzerinde plugin'in standart iptal ve tekrar kontrol işlemine bir yönetici tarafından yapılması gerekir; ardından saldırıcının HTTP sunucusu, link loguna doğrudan saklanan HTML/JavaScript içeren bir URL'e yönlendirme yapar.
CVSS puanı 7.2'dir ve bu, saldırı yüzeyinin düşük ve istismar için yetki gerekli olmadığını gösterir.
Show the technical text from the sources
The Broken Link Checker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Author URL / Link Log in all versions up to, and including, 2.4.13 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires an administrator to perform the plugin's standard dismiss-and-recheck workflow on a link submitted by the attacker via the WordPress comment author URL field, after which the attacker's HTTP server issues a redirect to a URL containing an HTML/JavaScript payload that is stored verbatim in the link log.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CWE: CWE-79
Explanation produced with the local qwen3:4b-instruct 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-2026-75528 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | wpmudev | Broken Link Checker | View |
RED HAT CSAF/VEX: Product Impact Check
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.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 7.2 | CVSS V3_1 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N | CVE CNA |
| 7.2 | CVSS V31 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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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-2026-75528 is associated with the following CWEs:
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-2026-75528 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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