CVE-2023-34599
Published: 29 June 2023
Summary
CVE-2023-34599 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Gibbonedu Gibbon. Its CVSS base score is 6.1 (Medium).
Operationally, ranked in the top 2.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
Multiple Cross-Site Scripting vulnerabilities, tracked as CVE-2023-34599 and assigned CWE-79, affect Gibbon version 25.0.0. The issues carry a CVSS 3.1 score of 6.1 and permit remote attackers to inject and execute arbitrary JavaScript code in the context of affected users' browsers.
An unauthenticated attacker can exploit the flaws over the network by supplying malicious input that is rendered without adequate sanitization. Successful exploitation requires user interaction such as visiting a crafted link or page, after which the attacker can achieve limited impacts on confidentiality and integrity within the victim's session while the vulnerability scope changes.
Public references consist of GitHub repositories that document the findings but contain no details on official patches, workarounds, or mitigation steps from the Gibbon project. The associated EPSS score currently stands at 0.4946 after having reached a peak of 0.5474.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-38654
Vulnerability details
Multiple Cross-Site Scripting (XSS) vulnerabilities have been identified in Gibbon v25.0.0, which enable attackers to execute arbitrary Javascript code.
- 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.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.