Plattform
php
Komponente
easy-blog-site
Behoben in
1.0.1
A cross-site scripting (XSS) vulnerability has been identified in Easy Blog Site versions 1.0.0 through 1.0. This flaw resides within the /posts/update.php file, specifically concerning the handling of the 'postTitle' argument. Successful exploitation could allow an attacker to inject malicious scripts into the application, potentially impacting user sessions and data integrity. The vulnerability has been publicly disclosed.
The XSS vulnerability in Easy Blog Site allows an attacker to inject arbitrary JavaScript code into the application. This code can then be executed in the context of a user's browser when they visit a page containing the injected script. An attacker could leverage this to steal session cookies, redirect users to malicious websites, or deface the website. The impact is heightened if the application is used to handle sensitive user data, as the attacker could potentially gain access to this information. The remote nature of the exploit means it can be triggered without requiring local access to the server.
This vulnerability has been publicly disclosed, increasing the likelihood of exploitation. While the CVSS score is LOW, the ease of exploitation and potential impact on user data warrant prompt attention. No KEV listing or confirmed exploitation campaigns are currently known. The public disclosure date (2026-04-08) indicates that attackers may already be actively scanning for vulnerable instances.
Websites using Easy Blog Site versions 1.0.0–1.0 are at risk, particularly those that allow user-generated content or handle sensitive user data. Shared hosting environments where multiple websites share the same server instance are also at increased risk, as a vulnerability in one website could potentially be exploited to compromise others.
• generic web:
curl -I 'https://example.com/posts/update.php?postTitle=<script>alert(1)</script>' | grep -i 'content-type'• generic web:
curl 'https://example.com/posts/update.php?postTitle=<script>alert(1)</script>' | grep 'alert(1)'disclosure
Exploit-Status
EPSS
0.03% (9% Perzentil)
CISA SSVC
CVSS-Vektor
The primary mitigation for CVE-2026-5806 is to upgrade to a patched version of Easy Blog Site as soon as it becomes available. Until a patch is released, implement a Web Application Firewall (WAF) rule to filter out potentially malicious input in the 'postTitle' parameter of the /posts/update.php endpoint. Specifically, look for unusual characters or patterns commonly used in XSS payloads. Input validation on the server-side, sanitizing user-supplied data before rendering it in the HTML output, can also provide an additional layer of defense. After implementing these measures, thoroughly test the application to ensure that the vulnerability has been effectively mitigated.
Aktualisieren Sie das Easy Blog Site Plugin auf die neueste verfügbare Version, um die XSS-Schwachstelle zu beheben. Überprüfen Sie die offiziellen Plugin-Quellen auf spezifische Aktualisierungsanweisungen. Implementieren Sie Maßnahmen zur Validierung und Maskierung von Eingaben, um zukünftige XSS-Angriffe zu verhindern.
Schwachstellenanalysen und kritische Warnungen direkt in deinen Posteingang.
CVE-2026-5806 is a cross-site scripting (XSS) vulnerability affecting Easy Blog Site versions 1.0.0–1.0, allowing attackers to inject malicious scripts via the /posts/update.php file.
If you are using Easy Blog Site versions 1.0.0–1.0, you are potentially affected. Upgrade to a patched version as soon as possible.
Upgrade to a patched version of Easy Blog Site. If a patch is unavailable, implement strict input validation and consider using a WAF.
While no active exploitation campaigns have been confirmed, the vulnerability is publicly disclosed and a proof-of-concept may be available, increasing the risk of exploitation.
Refer to the Easy Blog Site vendor's website or security advisory channels for the official advisory regarding CVE-2026-5806.
Lade deine Abhängigkeitsdatei hoch und erfahre sofort, ob dich diese und andere CVEs treffen.