CVE-2022-25760Public exploitNetwork attack vector

Arbitrary JavaScript execution via unsanitized format compilation

Published Mar 17, 2022 · Updated Sep 16, 2024

Code injection in accesslog 0.0.2 and earlier allows attackers to execute arbitrary JavaScript through a crafted format option. The lib/compile.js compiler escapes only double quotes in the format string, interpolates the result into generated source, and executes it with Function. Exploitation requires a consuming application to let untrusted input control its logging format; successful code runs with the host Node.js process's privileges.

CVSS severity7.1
High
EPSS probability1.64%
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 accesslog 0.0.2 and earlier allows attackers to execute arbitrary JavaScript through a crafted format option. The lib/compile.js compiler escapes only double quotes in the format string, interpolates the result into generated source, and executes it with Function. Exploitation requires a consuming application to let untrusted input control its logging format; successful code runs with the host Node.js process's privileges.

The record

CVE
CVE-2022-25760
Published
Mar 17, 2022
Updated
Sep 16, 2024
Vendor
Carlos Rodriguez
Product
accesslog
Classifications
CWE-94, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record 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 <unspecified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Carlos Rodriguez · accesslogversion=0 <unspecified

Published CVSS scores

7.1SnykCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
10.0NVDAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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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-94Improper Control of Generation of Code ('Code Injection')
T1059.007JavaScript/JScript

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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