Security readout for executives and security teams
Plain-English summary
This CVE affects older Redmine releases that mishandle markup during Textile formatting. The public bundle does not provide severity, impact type, or proof of exploitation. Business urgency depends on whether the organization still runs Redmine before 3.4.13 or 4.0.6, especially where untrusted users can submit formatted content.
Executive priority
Prioritize this as an exposure cleanup item unless affected Redmine systems are internet-facing or accept untrusted content. The lack of public severity and exploitation evidence prevents a stronger risk rating, but fixed versions exist and old project-management systems often retain sensitive operational data.
Technical view
The issue is described only as incorrect handling of markup data during Textile formatting in Redmine before 3.4.13 and Redmine 4.x before 4.0.6. No CVSS, CWE, affected CPEs, exploit detail, or concrete impact class is provided in the supplied sources.
Likely exposure
Exposure is limited to Redmine deployments on versions earlier than 3.4.13, or 4.x versions earlier than 4.0.6. Debian LTS also published a Redmine security update in May 2021, indicating packaged deployments may have needed distribution updates.
Exploitation context
The source bundle does not report active exploitation, and KEV status is false. It also does not provide exploit availability, attack prerequisites, or impact details. Treat exposure as version-driven until vendor or distribution advisories provide more context.
Researcher notes
The supplied record is sparse. Do not infer XSS, injection, or authentication impact without a stronger advisory. The strongest defensible actions are version validation, package update verification, and checking Redmine and distribution advisories for fuller technical detail.
Mitigation direction
- Upgrade Redmine to 3.4.13, 4.0.6, or a later supported release.
- Apply the relevant Debian LTS Redmine security update where Debian packages are used.
- Check Redmine security advisories for any deployment-specific guidance.
- Retire or isolate unsupported Redmine instances that cannot be updated.
Validation and detection
- Inventory all Redmine instances and record exact application versions.
- Confirm no instance runs below 3.4.13 or 4.0.6 in the 4.x branch.
- Check package manager history for the Debian LTS Redmine update where applicable.
- Review user-submitted Textile content paths if affected versions remain online.
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-2019-25026 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
- 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.redmine.org/projects/redmine/wiki/Security_AdvisoriesCVE reference · x_refsource_MISC
- [debian-lts-announce] 20210513 [SECURITY] [DLA 2658-1] redmine security updateCVE reference · mailing-list, x_refsource_MLIST
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.