CVE-2023-35042Known exploitationPublic exploitNetwork attack vector

Remote command execution via crafted Jiffle script

Published Jun 12, 2023 · Updated Nov 27, 2024

Code injection in GeoServer before 2.18.6, 2.19.0 through 2.19.5, and 2.20.0 through 2.20.3 allows remote attackers to execute commands. The WPS Execute path accepts a crafted ras:Jiffle script in wps:LiteralData, generates Java code from it, and uses Janino to compile executable bytecode that reaches Runtime.exec. The WPS/Jiffle path must be remotely exposed; GeoServer identifies this as previously patched CVE-2022-24816 behavior and documents this CVE as disputed.

CVSS severity9.8
Critical
EPSS probability43.23%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in GeoServer before 2.18.6, 2.19.0 through 2.19.5, and 2.20.0 through 2.20.3 allows remote attackers to execute commands. The WPS Execute path accepts a crafted ras:Jiffle script in wps:LiteralData, generates Java code from it, and uses Janino to compile executable bytecode that reaches Runtime.exec. The WPS/Jiffle path must be remotely exposed; GeoServer identifies this as previously patched CVE-2022-24816 behavior and documents this CVE as disputed.

The record

CVE
CVE-2023-35042
Published
Jun 12, 2023
Updated
Nov 27, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2023Exploitation reportedGeoServer WPS cryptominer requests observed by SANS ISC
  2. Jun 12, 2023CVE publishedPublication date reported by the CVE source.
  3. Nov 27, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS: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.

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 exploitationReported
Public exploitPublished

Weakness, pattern, technique

T1059Command and Scripting Interpreter

Public exploit references

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

Reported exploitation

Technologies

Your stack

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Your stack

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