CVE-2025-59288 in Playwright
Summary
by MITRE • 10/14/2025
Improper verification of cryptographic signature in Github: Playwright allows an unauthorized attacker to perform spoofing over an adjacent network.
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Analysis
by VulDB Data Team • 11/21/2025
The vulnerability identified as CVE-2025-59288 represents a critical weakness in Playwright's cryptographic signature verification mechanism that enables unauthorized attackers to perform network-level spoofing operations. This issue specifically affects the verification process that should ensure the authenticity and integrity of communications within adjacent network segments. The flaw stems from insufficient validation of digital signatures that Playwright relies upon to authenticate network traffic and maintain secure communication channels between components.
This cryptographic weakness places the system at risk of man-in-the-middle attacks where an attacker positioned within the same network segment can manipulate communications and present forged signatures that appear legitimate to the Playwright system. The vulnerability operates at the network protocol level where signature validation should occur, creating a pathway for malicious actors to impersonate legitimate network entities and potentially gain unauthorized access to sensitive resources or data streams. The improper verification mechanism essentially allows attackers to bypass critical authentication checks that should prevent unauthorized network participation.
The operational impact of this vulnerability extends beyond simple spoofing attacks to potentially enable more sophisticated exploitation patterns including session hijacking, data manipulation, and unauthorized access to network resources. Attackers could leverage this weakness to intercept, modify, or redirect network traffic intended for legitimate Playwright components, potentially compromising the entire security posture of systems relying on this framework for automated browser testing and web scraping operations. The adjacent network attack vector means that even systems with proper network segmentation may be vulnerable if attackers can position themselves within the same broadcast domain.
From a cybersecurity framework perspective, this vulnerability aligns with CWE-347 which specifically addresses improper verification of cryptographic signatures and represents a direct violation of security principles outlined in NIST SP 800-57 for cryptographic key management and signature validation. The issue also maps to ATT&CK technique T1566 which covers phishing and social engineering attacks that can be facilitated through network-level spoofing operations. Organizations using Playwright for automated testing or web scraping operations face significant risk of compromise, particularly in environments where network isolation is not strictly enforced.
Mitigation strategies should focus on implementing robust cryptographic signature validation mechanisms that properly verify digital signatures using strong hashing algorithms and certificate authorities. Security teams should consider deploying network segmentation controls to limit adjacent network access, implement additional authentication layers beyond cryptographic signatures, and ensure regular updates to Playwright versions that address this specific vulnerability. Network monitoring solutions should be enhanced to detect anomalous signature validation patterns that may indicate exploitation attempts, while also establishing proper certificate management procedures to ensure that only trusted entities can generate valid signatures within the system environment.