Security readout for executives and security teams
Plain-English summary
CVE-2022-50905 affects e107 CMS 3.2.1 and describes cross-site scripting in comment handling and SVG media uploads. Successful abuse could run attacker-controlled JavaScript in a user’s browser. The provided sources include a public exploit reference, but do not show confirmed active exploitation or a vendor fix.
Executive priority
Prioritize exposed e107 CMS 3.2.1 sites, especially public-facing properties. Treat this as urgent if the CMS supports customer-facing content, authenticated users, or multiple administrators. Confirm vendor remediation before relying on assumptions.
Technical view
The CVE describes CWE-79 XSS in e107 CMS 3.2.1. One issue is reflected XSS in news.php comment flow involving authenticated user interaction. Another is stored XSS through administrator SVG upload via image.php media manager remote URL upload. The CVSS is listed as 9.8 critical, though operational impact depends on CMS exposure and user roles.
Likely exposure
Organizations are exposed if they run e107 CMS version 3.2.1, especially public sites with news comments enabled or administrators using the media manager remote URL upload feature.
Exploitation context
A public ExploitDB entry and VulnCheck advisory are cited. The source bundle does not indicate CISA KEV listing or confirmed active exploitation. Abuse requires users or administrators to interact with vulnerable CMS workflows, depending on the specific XSS path.
Researcher notes
Evidence supports XSS in e107 CMS 3.2.1 with references to news.php and image.php. The bundled CVSS vector rates this critical, but the narrative suggests user/workflow dependence. No KEV status, active exploitation evidence, or specific patched version is provided in the sources.
Mitigation direction
- Inventory e107 CMS deployments and identify any running version 3.2.1.
- Check e107 vendor guidance and downloads for a fixed release or advisory.
- Restrict or disable vulnerable comment workflows until remediation is confirmed.
- Limit administrator access to media manager remote URL uploads.
- Block or review SVG uploads where operationally feasible.
- Use web application filtering only as a temporary compensating control.
Validation and detection
- Confirm CMS version from administrative or asset inventory records.
- Review whether news comments are enabled on affected sites.
- Review whether media manager remote URL uploads are available to administrators.
- Search uploaded media for unexpected SVG files from remote sources.
- Check web logs for suspicious comment URLs or unusual media upload activity.
- Verify remediation against vendor documentation, not exploit reproduction.
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 lookupCVE-2022-50905 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
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.
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:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-50910CVE reference · exploit
- Official Vendor HomepageCVE reference · product
- Software Download PageCVE reference · product
- VulnCheck Advisory: e107 CMS v3.2.1 - Reflected XSS via Comment FlowCVE reference · third-party-advisory
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.