CVE-2023-50719
Published: 15 December 2023
Summary
CVE-2023-50719 is a high-severity Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) vulnerability in Xwiki Xwiki. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 2.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
XWiki Platform's Solr-based search component is affected by an information disclosure vulnerability in versions from 7.2-milestone-2 through 14.10.14, 15.5.1, and 15.6. The flaw causes the search index to expose password hashes for all users as well as any other stored credentials such as API keys that extensions may place in user-profile documents. By default all user profiles are publicly viewable, so the exposure occurs without authentication.
An unauthenticated or low-privileged attacker who can reach the Solr search endpoint can retrieve these credentials in plaintext. Successful exploitation yields the ability to obtain every user's password hash and any extension-held secrets, enabling offline cracking or direct reuse of the disclosed keys.
The GitHub Security Advisory and the project's release notes state that the issue is resolved in XWiki 14.10.15, 15.5.2, and 15.7RC1; administrators are advised to upgrade to one of these versions. No workarounds are documented.
The CVE carries a CVSS 7.5 score reflecting network-accessible, low-complexity confidentiality impact. Its EPSS score has remained near 0.51 with only minor fluctuation between the recorded peak and current values.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-3256
Vulnerability details
XWiki Platform is a generic wiki platform. Starting in 7.2-milestone-2 and prior to versions 14.10.15, 15.5.2, and 15.7-rc-1, the Solr-based search in XWiki discloses the password hashes of all users to anyone with view right on the respective user profiles.…
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By default, all user profiles are public. This vulnerability also affects any configurations used by extensions that contain passwords like API keys that are viewable for the attacker. Normally, such passwords aren't accessible but this vulnerability would disclose them as plain text. This has been patched in XWiki 14.10.15, 15.5.2 and 15.7RC1. There are no known workarounds for this vulnerability.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Automated marking applies security attributes to system outputs, making it harder for attackers to exploit unmarked sensitive information leading to unauthorized exposure.
Proper attribute retention and permitted-value enforcement limits unauthorized actors from accessing sensitive information lacking correct labels.
Review and removal of nonpublic information from publicly accessible systems directly prevents exposure of sensitive data to unauthorized actors.
Data mining protection mechanisms detect and block unauthorized bulk extraction of sensitive data, directly mitigating exposure to unauthorized actors.
Literacy training teaches users to recognize and avoid actions that result in unauthorized exposure of sensitive information.
Documenting information locations and authorized users enables better protection against unauthorized exposure of sensitive data.
A data action map identifies locations where sensitive information may be exposed to unauthorized actors during processing or transfer.
The media protection policy defines requirements and procedures to prevent unauthorized disclosure or access to sensitive information on media.