CVE-2021-46679Network attack vector

Browser script execution via service elements

Published Aug 5, 2022 · Updated Jun 2, 2026

Cross-site scripting in Pandora FMS 756 and earlier allows attackers to execute JavaScript through crafted service elements. Published records do not identify the affected field, request handler, or missing output-encoding operation in the service-element path. Execution requires a user to view the affected content, with browser-context data access and modification as the bounded consequence.

CVSS severity6.1
Medium
EPSS probability0.39%
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 attackers to execute JavaScript through crafted service elements. Published records do not identify the affected field, request handler, or missing output-encoding operation in the service-element path. Execution requires a user to view the affected content, with browser-context data access and modification as the bounded consequence.

The record

CVE
CVE-2021-46679
Published
Aug 5, 2022
Updated
Jun 2, 2026
Vendor
Pandora FMS
Product
Pandora FMS
Classifications
CWE-79, CAPEC-63, T1203
Attack vector
network
Privileges
unauthenticated

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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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 vectornetwork
Required privilegesunauthenticated

What is affected?

Pandora FMS · Pandora FMSversion=v756 <=v756

Published CVSS scores

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

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting (XSS)
T1203Exploitation for Client Execution

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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