CVE-2023-0167Public exploitNetwork attack vector

Stored XSS via unescaped shortcode attributes

Published Mar 20, 2023 · Updated Feb 26, 2025

Stored XSS in GetResponse Official 5.5.31 and earlier allows remote authenticated users to inject scripts through shortcode attributes. The plugin renders user-supplied shortcode attributes into a page or post without validating or escaping them. Contributor-level access is required to store the payload, which executes in a visitor's browser when the affected content is viewed.

CVSS severity5.4
Medium
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

Stored XSS in GetResponse Official 5.5.31 and earlier allows remote authenticated users to inject scripts through shortcode attributes. The plugin renders user-supplied shortcode attributes into a page or post without validating or escaping them. Contributor-level access is required to store the payload, which executes in a visitor's browser when the affected content is viewed.

The record

CVE
CVE-2023-0167
Published
Mar 20, 2023
Updated
Feb 26, 2025
Vendor
GetResponse
Product
GetResponse Official
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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 <=5.5.31

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GetResponse · GetResponse Officialversion=0 <=5.5.31

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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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