Security readout for executives and security teams
Plain-English summary
CVE-2020-2317 is a stored XSS issue in Jenkins FindBugs Plugin 5.0.0 and earlier. A user who can supply FindBugs report files to the post-build step could place unsafe content that Jenkins later shows in annotation tooltips. This can affect people viewing build results in Jenkins.
Executive priority
Handle during normal vulnerability remediation, with faster action for shared Jenkins systems or pipelines accepting untrusted contributions. The issue is not shown as actively exploited, but Jenkins XSS can still expose sensitive build context or user sessions.
Technical view
The plugin failed to escape annotation message content before rendering it in tooltips. The source describes exploitation by attackers able to provide report files to the Jenkins FindBugs Plugin post-build step. The bundle does not provide CVSS, CWE classification, or confirmed fixed-version details.
Likely exposure
Exposure is limited to Jenkins environments that use FindBugs Plugin 5.0.0 or earlier and accept report files from users, jobs, branches, or build inputs that are not fully trusted.
Exploitation context
The provided sources do not indicate active exploitation, and the CVE is not marked KEV. Exploitation requires the ability to influence report files consumed by the plugin, then a victim viewing affected Jenkins output.
Researcher notes
Evidence is narrow but consistent: stored XSS in annotation tooltips due to missing escaping. The key exposure question is not only plugin presence, but whether attackers can influence report files used by the post-build step.
Mitigation direction
- Check Jenkins advisory SECURITY-1918 and plugin guidance for supported fixes or replacements.
- Inventory Jenkins controllers for FindBugs Plugin version 5.0.0 or earlier.
- Restrict who can configure jobs or provide FindBugs report files.
- Disable or remove the plugin where it is unused or unsupported.
- Treat untrusted generated reports as potentially unsafe until remediated.
Validation and detection
- Confirm whether FindBugs Plugin is installed on each Jenkins controller.
- Record installed plugin versions and compare against 5.0.0 and earlier.
- Identify jobs using the FindBugs post-build step.
- Review who can submit code, artifacts, or report files to those jobs.
- Check Jenkins advisories for updated remediation status before closure.
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.
CVE-2020-2317 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-1918CVE reference · 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.