CVE-2021-46681

Stored XSS via unneutralized massive-operation name

Published Aug 5, 2022 · Updated Jun 2, 2026

Cross-site scripting in Pandora FMS 756 and earlier allows local users to execute JavaScript via the module massive-operation name field. The web console accepts the name value and renders it without neutralizing script content. Exploitation requires high privileges and user interaction, and execution is limited to a viewer's browser context.

CVSS severity4.0
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Pandora FMS 756 and earlier allows local users to execute JavaScript via the module massive-operation name field. The web console accepts the name value and renders it without neutralizing script content. Exploitation requires high privileges and user interaction, and execution is limited to a viewer's browser context.

The record

CVE
CVE-2021-46681
Published
Aug 5, 2022
Updated
Jun 2, 2026
Vendor
Pandora FMS
Product
Pandora FMS
Classifications
CWE-79, T1059.007
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 5, 2022CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=v756 <=v756

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Pandora FMS · Pandora FMSversion=v756 <=v756

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.0Artica PFMSCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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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