Agent-to-administrator escalation via signature HTML upload
Published Jun 24, 2023 · Updated Nov 27, 2024
Stored XSS in Faveo Helpdesk Enterprise 6.0.1 allows remote authenticated users to gain administrator privileges through an agent signature. The agent-signature image uploader accepts HTML, stores it, and renders its script in an administrator's browser, enabling creation of an administrative user. Agent permissions and administrator interaction with a malicious link are required; HttpOnly cookies prevent direct session-cookie theft.
Summary
What happened
Stored XSS in Faveo Helpdesk Enterprise 6.0.1 allows remote authenticated users to gain administrator privileges through an agent signature. The agent-signature image uploader accepts HTML, stores it, and renders its script in an administrator's browser, enabling creation of an administrative user. Agent permissions and administrator interaction with a malicious link are required; HttpOnly cookies prevent direct session-cookie theft.
The record
- CVE
- CVE-2023-1724
- Published
- Jun 24, 2023
- Updated
- Nov 27, 2024
- Vendor
- Ladybird Web Solution Pvt. Ltd.
- Product
- Faveo Helpdesk
- Classifications
- CWE-79, CAPEC-233, T1068
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 24, 2023CVE publishedPublication date reported by the CVE source.
- Nov 27, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=6.0.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Towers stored-XSS privilege-escalation demonstrationproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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