CVE-2021-25118 is a medium-severity vulnerability found in the Yoast SEO WordPress plugin, affecting versions from 16.7 until 17.2. This vulnerability allows the disclosure of the full internal path of featured images in posts through the wp/v2/posts REST endpoints. The exposure of such information could assist an attacker in identifying other vulnerabilities or facilitate the exploitation of other identified vulnerabilities.
With a CVSS score of 5.3, the risk to organizations includes potential unauthorized access to sensitive information. This vulnerability is classified under CWE-200, indicating improper handling of sensitive information. Organizations utilizing affected versions of the Yoast SEO plugin should prioritize addressing this vulnerability in their security posture.
Currently, there are no known exploits available for this vulnerability, but its potential for data exposure necessitates immediate attention. Organizations should assess their plugin versions and apply necessary patches to safeguard their systems against possible exploitation.
Organizations should prioritize patching immediately to mitigate risks associated with this vulnerability.
Vulnerability Details
The official CVE description states that the Yoast SEO WordPress plugin discloses internal paths of featured images. The affected versions are specifically 16.7 to 17.2, with the vulnerability being published on February 28, 2022. The vulnerability classification indicates that the issue pertains to the disclosure of sensitive information (CWE-200).
Technical Analysis
The root cause of CVE-2021-25118 stems from the improper handling of internal paths in the Yoast SEO plugin. The attack vector is network-based, allowing an attacker to exploit the vulnerability without physical access to the server. The attack complexity is low, and no user interaction is required, making it accessible for potential attackers.
This vulnerability requires no privileges to exploit, which means any unauthenticated user could potentially access sensitive information. The confidentiality impact is classified as low, indicating that while some sensitive information may be disclosed, the integrity and availability of the system remain unaffected.
Risk & Impact Analysis
Organizations utilizing the Yoast SEO plugin in their WordPress installations face the risk of exposing sensitive image paths, which could lead to further vulnerabilities being identified and exploited. The urgency to address this vulnerability is heightened by its low attack complexity and the lack of required authentication, enabling a broader range of potential attackers.
Given the reported EPS score of 0.3533, indicating a high probability of exploitation, organizations should schedule remediation as part of their priority patch cycle. The potential for attackers to leverage disclosed paths warrants immediate attention.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The Yoast SEO WordPress plugin versions 16.7 through 17.2 are affected by this vulnerability. Organizations should ensure they upgrade to a patched version above 17.2.
Mitigation & Remediation
To remediate this issue, organizations should update the Yoast SEO plugin to the latest version. If a patch is not yet available, consider disabling the plugin until an update can be applied. Implementing proper configuration hardening and monitoring for suspicious activity can also help mitigate potential risks.
For further guidance, organizations may refer to the penetration testing services to identify potential vulnerabilities.
Detection Guidance
Organizations should monitor their systems for log indicators that may correlate with this vulnerability. Behavioral anomalies related to the wp/v2/posts REST endpoint should be flagged for review, and any unauthorized access attempts to sensitive internal paths should be investigated.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability emphasizes the importance of securing WordPress plugins. As attackers continue to exploit weaknesses, security teams must remain vigilant in monitoring and updating their systems. Lessons learned from this incident highlight the need for robust security testing practices, such as regular penetration testing methodologies, to ensure vulnerabilities are identified and addressed promptly.
This incident also represents a trend in vulnerabilities affecting widely used plugins, reinforcing the need for ongoing security assessments. Security teams should be proactive in establishing a vulnerability management program and incorporate lessons learned into their security strategies.
In conclusion, as vulnerabilities like CVE-2021-25118 emerge, organizations must prioritize their security measures and stay informed about the evolving threat landscape.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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