CVE-2017-20058Public exploitNetwork attack vector

Stored XSS via unencoded version comparison fields

Published Jun 20, 2022 · Updated Apr 15, 2025

Stored cross-site scripting in Elefant CMS 1.3.12-RC allows remote attackers to execute script in an administrator's browser. The version-comparison view echoes stored profile and page fields into its HTML without output encoding. A registered account can supply the payload, and execution requires an administrator to open the affected comparison view, enabling cookie theft or actions in that session.

CVSS severity6.1
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Elefant CMS 1.3.12-RC allows remote attackers to execute script in an administrator's browser. The version-comparison view echoes stored profile and page fields into its HTML without output encoding. A registered account can supply the payload, and execution requires an administrator to open the affected comparison view, enabling cookie theft or actions in that session.

The record

CVE
CVE-2017-20058
Published
Jun 20, 2022
Updated
Apr 15, 2025
Vendor
HASOMED GmbH
Product
Elefant
Classifications
CWE-80, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 20, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 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=1.3.12-RC

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HASOMED GmbH · Elefantversion=1.3.12-RC

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.0CuresecAV:N/AC:L/Au:N/C:N/I:P/A: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-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
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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