Platform
java
Component
rymcu-forest
Opgelost in
0.0.2
0.0.3
0.0.4
0.0.5
0.0.6
CVE-2026-2946 is a cross-site scripting (XSS) vulnerability affecting rymcu forest versions 0.0.1 through 0.0.5. This vulnerability resides within the XssUtils.replaceHtmlCode function, impacting Article Content, Comments, and Portfolio sections. A public exploit is available, making it a potential risk for exposed systems. The vendor has not responded to early disclosure attempts.
Successful exploitation of CVE-2026-2946 allows an attacker to inject malicious scripts into web pages viewed by other users of rymcu forest. This can lead to session hijacking, defacement of the website, or redirection to malicious sites. The attacker could potentially steal sensitive user data, including credentials, or perform actions on behalf of the victim. Given the public availability of an exploit, the risk of exploitation is elevated, particularly if the application is publicly accessible and the vulnerability is not addressed promptly.
CVE-2026-2946 has been publicly disclosed, and a proof-of-concept exploit is available. This significantly increases the likelihood of exploitation. The vulnerability is currently not listed on KEV or EPSS, suggesting a low to medium probability of active exploitation, but the public exploit makes it a high priority for remediation. The CVE was published on 2026-02-22.
Organizations using rymcu forest versions 0.0.1 through 0.0.5, particularly those with publicly accessible instances of Article Content, Comments, or Portfolio features, are at risk. Shared hosting environments where multiple users share the same rymcu forest instance are also particularly vulnerable.
• java / server: Examine the src/main/java/com/rymcu/forest/util/XssUtils.java file for the XssUtils.replaceHtmlCode function. Look for instances where user input is directly rendered without proper sanitization.
• generic web: Monitor access logs for unusual patterns of requests containing HTML tags or JavaScript code, particularly targeting Article Content, Comments, or Portfolio pages. Use curl to test for XSS by injecting <script>alert(1)</script> into input fields.
• generic web: Check response headers for X-XSS-Protection header. Ensure it's set to 1; mode=block to enable XSS filtering.
disclosure
Exploit Status
EPSS
0.03% (7% percentiel)
CISA SSVC
CVSS-vector
The primary mitigation for CVE-2026-2946 is to upgrade rymcu forest to a version containing a fix. Since no fixed version is provided, consider implementing input validation and output encoding on user-supplied data within the Article Content, Comments, and Portfolio sections. Employ a Web Application Firewall (WAF) with XSS filtering rules to block malicious payloads. Regularly scan the application for XSS vulnerabilities using automated tools. After upgrade (or implementation of workarounds), thoroughly test the affected areas to confirm the vulnerability is no longer exploitable.
Actualiseer naar een gecorrigeerde versie die niet kwetsbaar is voor XSS-aanvallen. Aangezien de leverancier niet heeft gereageerd, wordt aanbevolen om alternatieven te zoeken of aanvullende beveiligingsmaatregelen te implementeren om het risico van XSS in de getroffen code te beperken.
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CVE-2026-2946 is a cross-site scripting (XSS) vulnerability in rymcu forest versions 0.0.1–0.0.5, affecting Article Content/Comments/Portfolio. It allows attackers to inject malicious scripts.
You are affected if you are using rymcu forest versions 0.0.1 through 0.0.5 and have not yet upgraded or implemented mitigating controls.
Upgrade rymcu forest to a patched version (if available). If no patch is available, implement input validation and output encoding, and consider using a WAF.
A public exploit exists, increasing the likelihood of exploitation. Monitor your systems closely and prioritize remediation.
Due to the vendor's lack of response, an official advisory may not be available. Monitor security news sources and community forums for updates.
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