Security readout for executives and security teams
Plain-English summary
CVE-2021-4275 is a cross-site request forgery issue in katlings pyambic-pentameter. A remote attacker could potentially trick a user into making an unintended state-changing request. The published impact is limited to low integrity impact, with no confidentiality or availability impact stated.
Executive priority
Treat this as a moderate-priority integrity risk. It is not listed as known exploited, but patching is appropriate where the software is deployed and reachable by users.
Technical view
The source identifies an unknown affected function in pyambic-pentameter and classifies the flaw as CSRF, with CVSS 3.1 score 4.3: AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N. A patch commit is named, but affected versions and detailed vulnerable code paths are not provided.
Likely exposure
Exposure is limited to organizations running katlings pyambic-pentameter, especially if reachable by users through a browser. The source bundle does not identify affected versions, package identifiers, CPEs, or specific routes, so inventory confirmation is required.
Exploitation context
The CVSS vector indicates remote exploitation with low attack complexity and no attacker privileges, but user interaction is required. The bundle states KEV is false and provides no cited evidence of active exploitation.
Researcher notes
The public record is sparse: affected versions are listed as n/a, the vulnerable function is unknown, and only a commit hash is provided as the patch reference. Avoid broad product assumptions beyond pyambic-pentameter.
Mitigation direction
- Apply upstream patch commit 974f21aa1b2527ef39c8afe1a5060548217deca8.
- Check the project repository for fixed release or upgrade guidance.
- Prioritize patching internet-facing or user-accessible deployments.
- Document any compensating controls if patching is delayed.
Validation and detection
- Inventory systems for katlings pyambic-pentameter usage.
- Confirm deployed code includes the named patch commit.
- Review exposed state-changing functionality for CSRF protection.
- Record affected-version uncertainty in the vulnerability ticket.
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-863: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2021-4275 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
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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:N/I:L/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/katlings/pyambic-pentameter/commit/974f21aa1b2527ef39c8afe1a5060548217deca8CVE reference
- https://vuldb.com/?id.216498CVE reference
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.
Incorrect Authorization
Incorrect Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.