Security readout for executives and security teams
Plain-English summary
This is a stored or reflected cross-site scripting issue in Atlassian Team Calendar for Confluence Server before 7.11.0. An authenticated attacker with low privileges could inject HTML or JavaScript into admin global setting parameters, potentially affecting another user who views the content. The impact is limited but business-relevant because Confluence often contains sensitive internal knowledge.
Executive priority
Handle in the normal vulnerability remediation cycle, faster for internet-facing or sensitive Confluence environments. This is moderate severity, not confirmed actively exploited, but Confluence content can be high-value and XSS can support account misuse or data exposure.
Technical view
CVE-2020-29444 is CWE-79 XSS affecting Team Calendar in Confluence Server before 7.11.0. CVSS 3.1 is 5.4: network reachable, low complexity, low privileges required, user interaction required, changed scope, low confidentiality and integrity impact, no availability impact.
Likely exposure
Exposure is most likely in organizations running Confluence Server with Team Calendar versions before 7.11.0. Risk is higher where many users have accounts or where Confluence is externally reachable. The source bundle does not identify Confluence Cloud, Data Center, or other Atlassian products as affected.
Exploitation context
The CVE is not listed as CISA KEV in the provided bundle, and no cited source states active exploitation. Successful abuse requires an authenticated attacker and user interaction, so this is not a wormable unauthenticated compromise scenario. Treat it as a session, content integrity, and internal data exposure risk.
Researcher notes
Evidence is limited to the CVE record and Atlassian issue reference. The provided data identifies the vulnerable area as admin global setting parameters and establishes the pre-7.11.0 affected boundary, but does not provide exploit details, patch notes, or observed exploitation evidence.
Mitigation direction
- Upgrade affected Team Calendar or Confluence Server deployments to 7.11.0 or later where applicable.
- Review Atlassian advisory CONFSERVER-61266 for exact fixed versions and vendor guidance.
- Limit access to admin global settings to trusted administrators only.
- Reduce external exposure of affected Confluence Server instances where business needs allow.
- Prioritize remediation for instances containing sensitive internal, customer, or operational data.
Validation and detection
- Inventory Confluence Server deployments and identify whether Team Calendar is installed.
- Confirm Team Calendar or Confluence Server version is before 7.11.0.
- Review admin global setting parameters for unexpected HTML or JavaScript.
- Check audit history for suspicious global setting changes by low-privileged accounts.
- Verify fixed versions are deployed in staging before production rollout.
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-2020-29444 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
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N2.32.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://jira.atlassian.com/browse/CONFSERVER-61266CVE 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.