CVE-2025-2577 identifies a stored cross-site scripting (XSS) vulnerability in the Bitspecter Suite plugin for WordPress, present in all versions up to and including 1.0.0. The root cause is improper neutralization of input during web page generation (CWE-79), specifically insufficient sanitization and escaping of SVG file uploads. Authenticated users with Author-level access or higher can upload SVG files containing malicious JavaScript payloads. When these SVG files are accessed by any user, the embedded scripts execute in the context of the victim's browser, potentially allowing attackers to steal session cookies, perform actions on behalf of the victim, or conduct phishing attacks. The vulnerability is exploitable remotely over the network without user interaction beyond viewing the SVG. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N) indicates network attack vector, low attack complexity, requiring privileges but no user interaction, with a scope change and low impact on confidentiality and integrity but no impact on availability. No patches or exploit code are currently publicly available, but the vulnerability is published and should be addressed promptly. The vulnerability affects a WordPress plugin, a widely used CMS platform, increasing the potential attack surface.

The impact of CVE-2025-2577 is primarily on confidentiality and integrity, as attackers can execute arbitrary scripts in users' browsers, potentially stealing session tokens, credentials, or performing unauthorized actions within the affected WordPress site. This can lead to account takeover, data theft, defacement, or further malware distribution. Since the vulnerability requires Author-level access, attackers must first compromise or have legitimate access to an account with sufficient privileges, which limits exploitation but still poses a significant risk in multi-user environments. The scope change in the CVSS vector indicates that the vulnerability can affect resources beyond the initially compromised component, potentially impacting other users or site visitors. Although availability is not impacted, the reputational damage and potential data breaches can be severe for organizations relying on the Bitspecter Suite plugin. The lack of known exploits in the wild suggests limited current exploitation but also means organizations should act proactively before attackers develop weaponized payloads.

To mitigate CVE-2025-2577, organizations should immediately upgrade the Bitspecter Suite plugin to a patched version once available. In the absence of an official patch, administrators should restrict SVG file uploads to trusted users only or disable SVG uploads entirely. Implementing a web application firewall (WAF) with rules to detect and block malicious SVG payloads can provide temporary protection. Additionally, review and harden user access controls to limit Author-level privileges only to trusted personnel. Regularly audit uploaded files for suspicious content and sanitize SVG files using specialized libraries that remove scripts and embedded code before allowing uploads. Monitoring logs for unusual upload activity or script execution attempts can help detect exploitation attempts early. Finally, educating users about the risks of XSS and enforcing strong authentication mechanisms reduces the likelihood of initial account compromise.