Security readout for executives and security teams
Plain-English summary
Typemill CMS versions before 2.19.2 can reflect unsafe content on the login error page. If a user is tricked into interacting with a crafted login flow, script could run in that user’s browser on the Typemill site. This is not reported as actively exploited in the provided sources, but public-facing documentation sites should update promptly.
Executive priority
Treat as a routine but timely web application fix. The impact is moderate and requires user interaction, but exposed login pages increase phishing-driven risk. Upgrade affected Typemill sites during the next patch window, sooner for public-facing or administrator-used instances.
Technical view
CVE-2026-24127 is a reflected XSS in Typemill’s login error view template, login.twig. In versions 2.19.1 and below, the username value may be echoed after failed authentication without proper contextual encoding. The CVSS 3.1 score is 5.4, with network attack vector, low complexity, no privileges required, and required user interaction. Fixed in 2.19.2.
Likely exposure
Exposure is limited to organizations running Typemill CMS versions earlier than 2.19.2, especially internet-accessible documentation or informational sites with reachable login pages.
Exploitation context
An attacker would need to induce a user to interact with a crafted request or login attempt. Successful exploitation could affect browser-side confidentiality or integrity within the Typemill site context. Provided sources do not indicate KEV listing or active exploitation.
Researcher notes
The advisory attributes the flaw to insufficient contextual encoding of the username value in login.twig during authentication failure. CWEs are CWE-116 and CWE-79. The available sources identify the fix commit and v2.19.2 release, but do not provide evidence of exploitation in the wild.
Mitigation direction
- Upgrade Typemill to version 2.19.2 or later.
- Review the GitHub advisory and release notes for vendor guidance.
- Prioritize internet-facing Typemill instances and administrative login surfaces.
- If immediate upgrade is delayed, reduce unnecessary access to the login page.
Validation and detection
- Inventory Typemill deployments and confirm running versions.
- Verify any version below 2.19.2 is scheduled for upgrade.
- Confirm the v2.19.2 release or later is installed after remediation.
- Review login templates for local customizations that could reintroduce unsafe output.
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-116: 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 lookupCWE-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-2026-24127 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:N/UI:R/S:U/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:N/UI:R/S:U/C:L/I:L/A:N2.82.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/typemill/typemill/security/advisories/GHSA-65x4-pjhj-r8wrCVE reference · x_refsource_CONFIRM
- https://github.com/typemill/typemill/commit/b506acd11e80fb9c8db5fa6c2c8ad73580b4e88cCVE reference · x_refsource_MISC
- https://github.com/typemill/typemill/releases/tag/v2.19.2CVE 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.
Improper Encoding or Escaping of Output
Improper Encoding or Escaping of Output represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
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.