Security readout for executives and security teams
Plain-English summary
Agent Zero before 1.15 can let a malicious SVG run JavaScript in the application’s browser context when viewed through the image_get API. A victim must be lured while authenticated. The likely business impact is account actions through the victim’s session and possible CSRF token theft, not direct server takeover.
Executive priority
Prioritize patching for internet-facing or shared Agent Zero instances with multiple authenticated users. The issue is not rated critical, but it can compromise user sessions and enable unauthorized API actions through trusted accounts.
Technical view
The vulnerability is stored XSS in image_get. Agent Zero serves attacker-controlled SVG from any path readable by the agent-zero process without CSP, X-Content-Type-Options, or Content-Disposition protections. Browser execution occurs in the application origin after authenticated user interaction. CVSS is 6.1, CWE-79.
Likely exposure
Exposure is likely limited to Agent Zero deployments before version 1.15 where attackers can place or influence SVG files in process-readable paths and lure authenticated users to the image_get endpoint.
Exploitation context
The supplied sources do not indicate CISA KEV listing or confirmed active exploitation. Exploitation requires user interaction and an authenticated victim, but no prior application privileges are listed in the CVSS vector.
Researcher notes
Evidence supports stored XSS via SVG handling in image_get and a patch reference. The provided bundle names Agent Zero before 1.15; affected-version metadata is sparse, so verify exact deployed versions against vendor records.
Mitigation direction
- Upgrade Agent Zero to version 1.15 or later, or apply the referenced vendor patch.
- Ensure image_get responses set defensive CSP, X-Content-Type-Options, and Content-Disposition headers.
- Limit paths readable by the agent-zero process to required application data.
- Treat SVG files from untrusted locations as active content, not safe images.
- Review vendor guidance and advisories before exposing the endpoint to users.
Validation and detection
- Inventory Agent Zero deployments and confirm whether any run versions before 1.15.
- Check whether image_get can serve SVG files from process-readable paths.
- Inspect endpoint responses for CSP, X-Content-Type-Options, and Content-Disposition headers.
- Confirm authenticated user sessions use patched code before reopening access.
- Review access logs for unusual image_get requests involving SVG content.
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-2026-47119 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
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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.
SSVC decision data
CVSS vector scores
2 official scoresWe 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:C/C:L/I:L/A:N2.82.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
5.3MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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://github.com/agent0ai/agent-zero/issues/1609CVE reference, VulnCheck · issue-tracking
- https://github.com/3clyp50/agent-zero/commit/1f2d5122265282d6b98bc36ee8f9d0f8ab76db9eCVE reference, VulnCheck · patch
- https://www.vulncheck.com/advisories/agent-zero-stored-xss-via-image-get-api-endpointCVE reference, VulnCheck · 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.