CVE-2025-4022Public exploitNetwork attack vector

Authenticated code execution via unsafe URL evaluation

Published Apr 28, 2025 · Updated Apr 28, 2025

Code injection in WebArena 0.1 through 0.2.0 allows remote authenticated users to execute Python code through a crafted evaluation URL. HTMLContentEvaluator removes the func prefix, substitutes page.url into the target expression, and passes the result to Python eval without restricting permitted code. Low-privileged access to supply the evaluation target is required, and injected code runs with the evaluator process's privileges.

CVSS severity8.8
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in WebArena 0.1 through 0.2.0 allows remote authenticated users to execute Python code through a crafted evaluation URL. HTMLContentEvaluator removes the func prefix, substitutes page.url into the target expression, and passes the result to Python eval without restricting permitted code. Low-privileged access to supply the evaluation target is required, and injected code runs with the evaluator process's privileges.

The record

CVE
CVE-2025-4022
Published
Apr 28, 2025
Updated
Apr 28, 2025
Vendor
WebArena-x
Product
WebArena
Classifications
CWE-74, CWE-94, T1059.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2025Record 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=0.1
  2. Affected versionversion=0.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WebArena-x · WebArenaversion=0.1; version=0.2.0

Published CVSS scores

6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.006Command and Scripting Interpreter: Python

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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