Security readout for executives and security teams
Plain-English summary
Pandora FMS has a stored cross-site scripting issue in the event filter name field. An attacker with significant access could cause JavaScript to run in a user's browser, potentially exposing monitoring data or altering what the user sees.
Executive priority
Treat as a controlled but real monitoring-platform risk. Prioritize if Pandora FMS is internet-adjacent, broadly administered, or used for sensitive operational visibility.
Technical view
CVE-2021-46677 is CWE-79 affecting Pandora FMS version 756 and below per the description. CVSS 3.1 score is 4.0 with AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L. The source bundle does not name a fixed version.
Likely exposure
Exposure is limited to organizations running Pandora FMS v756 or older, especially where privileged users can create or edit event filters and other users view those filters.
Exploitation context
No active exploitation is identified in the bundle; KEV is false. Exploitability appears constrained by local attack vector, high privileges, and required user interaction per CVSS.
Researcher notes
The evidence identifies the vulnerable field but not exploit details, patch version, or observed exploitation. Validation should focus on version, permissions, and safe confirmation of output encoding or sanitization behavior.
Mitigation direction
- Identify Pandora FMS deployments and confirm whether v756 or older is installed.
- Check Pandora FMS security guidance for a fixed release or supported upgrade path.
- Restrict event filter creation and editing to trusted administrators.
- Review monitoring-console access controls and remove unnecessary privileged accounts.
Validation and detection
- Verify installed Pandora FMS version against the affected version information.
- Confirm who can create or modify event filters in production.
- Review logs or audit trails for unusual event filter name changes.
- After remediation, confirm vendor guidance was applied and retest the field safely.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-46677 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L0.63.4ARTICAVulnerability scoring details
Base CVSS 3.1 score
4MediumVector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://pandorafms.com/en/security/common-vulnerabilities-and-exposures/CVE reference, ARTICA · x_refsource_CONFIRM
- https://www.incibe.es/en/cve-assignment-publication/coordinated-cvesCVE reference, ARTICA · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.