Session hijacking via retained pre-authentication cookie
Published May 12, 2026 · Updated May 12, 2026
Session fixation in the Pandora FMS Web Console 777 through 800 allows remote attackers to hijack user sessions via a crafted session ID. After authentication, the Web Console retains the attacker-supplied PHPSESSID instead of issuing a new cookie, so the identifier becomes authenticated. Exploitation requires a user to authenticate with the fixed identifier; the attacker then reuses it to access and alter data in that user's session.
Summary
What happened
Session fixation in the Pandora FMS Web Console 777 through 800 allows remote attackers to hijack user sessions via a crafted session ID. After authentication, the Web Console retains the attacker-supplied PHPSESSID instead of issuing a new cookie, so the identifier becomes authenticated. Exploitation requires a user to authenticate with the fixed identifier; the attacker then reuses it to access and alter data in that user's session.
The record
- CVE
- CVE-2026-30808
- Published
- May 12, 2026
- Updated
- May 12, 2026
- Vendor
- Pandora FMS
- Product
- Pandora FMS
- Classifications
- CWE-384, CAPEC-61, T1550.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 12, 2026CVE publishedPublication date reported by the CVE source.
- May 12, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=777 <=800
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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