Gibbon
CVE-2023-34599
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAI
Multiple Cross-Site Scripting (XSS) vulnerabilities have been identified in Gibbon v25.0.0, which enable attackers to execute arbitrary Javascript code. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Multiple Cross-Site Scripting (XSS) vulnerabilities have been identified in Gibbon v25.0.0, which enable attackers to execute arbitrary Javascript code. Affected products include: Gibbonedu Gibbon.
Know when Gibbon gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Multiple Cross-Site Scripting (XSS) vulnerabilities have been identified in Gibbon v25.0.0, which enable attackers to execute arbitrary Javascript code.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)NVD
Gibbon through 26.0.00 allows remote authenticated users to conduct PHP deserialization attacks via columnOrder in a POS
Gibbon through 26.0.00 allows /modules/School%20Admin/messengerSettings.php Server Side Template Injection leading to Re
GibbonEdu Gibbon version 25.0.1 and before allows Arbitrary File Write because rubrics_visualise_saveAjax.phps does not
Gibbon v25.0.0 is vulnerable to a Local File Inclusion (LFI) where it's possible to include the content of several files
GibbonEdu Gibbon through version 25.0.0 allows Directory Traversal via the report template builder. Rated high severity
SQL injection in Gibbon education platform versions prior to v30.0.01 enables authenticated users with Teacher privilege
cross-site scripting (XSS) vulnerability in Gibbon Core v26.0.00 allows an attacker to execute arbitrary code via the im
GibbonEdu Gibbon through version 25.0.0 allows /modules/Planner/resources_addQuick_ajaxProcess.php file upload with resu
Gibbon v3.4.4 and below allows attackers to execute a Server-Side Request Forgery (SSRF) via a crafted URL. Rated critic
GibbonEdu Gibbon version 25.0.0 allows HTML Injection via an IFRAME element to the Messager component. Rated medium seve
Gibbon v23 does not generate a new session ID cookie after a user authenticates, making the application vulnerable to se
Cross Site Scripting vulnerability in Gibbon before v.27.0.01 and fixed in v.28.0.00 allows a remote attacker to obtain
Exploit-DB