CVE-2026-55237Public exploitNetwork attack vector

Client-side code execution via unvalidated redirect parameter

Published Jun 18, 2026 · Updated Jun 18, 2026

DOM-based XSS in Significant Gravitas AutoGPT before 0.6.62 allows remote attackers to execute JavaScript through a crafted signup link. The signup hook reads the next query parameter and passes it unchanged to router.push or router.replace, allowing a javascript URI to reach window.location. Execution requires the victim to open the link while signed in, or to complete signup, and runs with the victim's AutoGPT browser-session authority.

CVSS severity8.8
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DOM-based XSS in Significant Gravitas AutoGPT before 0.6.62 allows remote attackers to execute JavaScript through a crafted signup link. The signup hook reads the next query parameter and passes it unchanged to router.push or router.replace, allowing a javascript URI to reach window.location. Execution requires the victim to open the link while signed in, or to complete signup, and runs with the victim's AutoGPT browser-session authority.

The record

CVE
CVE-2026-55237
Published
Jun 18, 2026
Updated
Jun 18, 2026
Vendor
Significant Gravitas
Product
AutoGPT
Classifications
CWE-87, CWE-601, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.6.62

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Significant Gravitas · AutoGPTversion=< 0.6.62

Published CVSS scores

8.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-87Improper Neutralization of Alternate XSS Syntax
CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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