Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:A/V:D/RE:L/U:Amber
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:A/V:D/RE:L/U:Amber
Lifecycle Timeline
5DescriptionCVE.org
Improper Neutralization of Input During Web Page Generation vulnerability allows Stored Cross-Site Scripting via event comments. This issue affects Pandora FMS: from 777 through 800
AnalysisAI
Stored Cross-Site Scripting (XSS) in Pandora FMS versions 777 through 800 allows authenticated users with low privileges to inject malicious scripts via event comments, which execute in the browsers of other users viewing those comments. The vulnerability has a CVSS score of 2.1 with low confidentiality and integrity impact, requiring user interaction and attack preparation time to exploit. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Risk Assessment | The CVSS v4.0 score of 2.1 reflects low real-world risk despite the XSS classification. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated user with low-level monitoring privileges submits a crafted event comment containing embedded JavaScript, such as a payload that exfiltrates session cookies. When another user (such as an administrator) views the event details page, the injected script executes in their browser, potentially capturing their session token or forcing them to perform administrative actions on behalf of the attacker. … |
| Remediation | Upgrade Pandora FMS to a version released after 800. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-21994
GHSA-4g9c-4vrc-qw29