CVE-2020-11467Public exploitNetwork attack vector

Remote code execution via unsafe Twig deserialization

Published Apr 1, 2020 · Updated Aug 4, 2024

Deserialization of untrusted data in Deskpro before 2019.8.0 allows remote authenticated users to execute arbitrary code through theme editing. The /portal/api/style/edit-theme-set/template-sources handler lets attacker-controlled Twig context data reach PHP's native unserialize function through the code parameter, activating crafted POP gadgets. Administrator access to the theme editor is required, and successful exploitation gives code execution on the Deskpro server.

CVSS severity7.2
High
EPSS probability3.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization of untrusted data in Deskpro before 2019.8.0 allows remote authenticated users to execute arbitrary code through theme editing. The /portal/api/style/edit-theme-set/template-sources handler lets attacker-controlled Twig context data reach PHP's native unserialize function through the code parameter, activating crafted POP gadgets. Administrator access to the theme editor is required, and successful exploitation gives code execution on the Deskpro server.

The record

CVE
CVE-2020-11467
Published
Apr 1, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-502, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 1, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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 privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
9.1MITRECVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

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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