Security readout for executives and security teams
Plain-English summary
CVE-2022-37721 affects PyroCMS 3.9. A lower-privileged author can store malicious script content in a blog post. If an administrator later views it, the issue can lead to administrator account takeover or privilege escalation. This is business-critical where untrusted or semi-trusted users can publish or draft content.
Executive priority
Treat as urgent for any PyroCMS 3.9 environment with multiple content authors, especially internet-facing sites or admin workflows reviewing user-created posts.
Technical view
The CVE describes stored cross-site scripting in PyroCMS 3.9, mapped to CWE-79. CVSS 3.1 is 9.0 with network attack vector, low complexity, low privileges required, user interaction required, changed scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Likely exposed systems are PyroCMS 3.9 deployments where low-privileged users can create or edit blog posts that administrators later view.
Exploitation context
The source bundle reports account takeover or privilege escalation impact. It does not show CISA KEV listing or cited evidence of active exploitation.
Researcher notes
Evidence is limited to the CVE data and the referenced Integrity advisory. The bundle does not provide CPEs, a patch version, or independent exploitation telemetry.
Mitigation direction
- Check PyroCMS vendor or maintainer guidance for an official fix.
- Restrict author roles able to submit HTML-rich blog content.
- Review and sanitize existing blog posts from lower-privileged users.
- Monitor administrator account changes and suspicious session activity.
Validation and detection
- Inventory PyroCMS instances and confirm whether version 3.9 is present.
- Review author permissions for blog post creation and HTML handling.
- Check audit logs for unusual content edits followed by administrator account changes.
- Confirm remediation against vendor guidance before closing the finding.
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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-37721 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
- Critical
- CVSS
- 9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
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.
SSVC decision data
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:H/I:H/A:H2.36CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9CriticalVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://labs.integrity.pt/advisories/cve-2022-37721/CVE reference, mitre
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 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.