Security readout for executives and security teams
Plain-English summary
This vulnerability affects the Table Filter and Charts for Confluence Server app before 5.3.25. A logged-in attacker could place unsafe HTML or JavaScript through Markdown in the Table from CSV macro, potentially exposing users who view the content to browser-side compromise.
Executive priority
Treat this as a high-priority application security update for Confluence environments using the affected app. Prioritize internet-facing or broadly accessible Confluence deployments first, especially where many users can create pages or macros.
Technical view
CVE-2020-24897 is a stored or content-rendered XSS issue in the Table from CSV macro’s Markdown handling. The CVSS 3.1 score is 8.9, with network reachability, low attack complexity, low privileges required, user interaction required, and changed scope.
Likely exposure
Exposure is limited to Atlassian Confluence Server environments that installed the Table Filter and Charts app before version 5.3.25 and allow users to create or edit affected macro content.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability still matters because Confluence content is commonly viewed by trusted users and XSS can affect session confidentiality and content integrity.
Researcher notes
The provided affected metadata is sparse, but the description clearly identifies the vulnerable app, version boundary, macro, and input path. No CWE is supplied in the bundle; classify operationally as XSS based on the CVE description.
Mitigation direction
- Inventory Confluence Server instances for the Table Filter and Charts app.
- Upgrade affected app installations to version 5.3.25 or later.
- Review Stiltsoft advisory VD-2 for vendor-specific remediation details.
- If upgrade timing is uncertain, follow vendor guidance for interim controls.
Validation and detection
- Confirm installed app versions across all Confluence Server environments.
- Identify pages using the Table from CSV macro.
- Check whether untrusted users can create or edit affected macro content.
- Confirm remediation by verifying the app version is no longer before 5.3.25.
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
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CVE-2020-24897 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AC:L/AV:N/A:L/C:H/I:H/PR:L/S:C/UI:R
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.
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/AC:L/AV:N/A:L/C:H/I:H/PR:L/S:C/UI:R2.36Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.9HighVector: CVSS:3.1/AC:L/AV:N/A:L/C:H/I:H/PR:L/S:C/UI:R
Source materials
- CVE List V5 sourceCVE List V5
- https://stiltsoft.atlassian.net/browse/VD-2CVE reference · x_refsource_MISC
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.