CVE-2022-0558Network attack vector

Stored script execution via unsanitized tag values

Published Feb 10, 2022 · Updated Aug 2, 2024

Stored XSS in the tagging module of Microweber before 1.2.11 allows remote authenticated users to run script in another user's browser. The tagging_tag_edit function saves tag parameters without passing their values through HTMLClean, allowing attacker-controlled markup to persist. Low-privileged access and a victim viewing the stored tag are required; script execution can read or alter data available in that browser session.

CVSS severity5.4
Medium
EPSS probability0.90%
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 the tagging module of Microweber before 1.2.11 allows remote authenticated users to run script in another user's browser. The tagging_tag_edit function saves tag parameters without passing their values through HTMLClean, allowing attacker-controlled markup to persist. Low-privileged access and a victim viewing the stored tag are required; script execution can read or alter data available in that browser session.

The record

CVE
CVE-2022-0558
Published
Feb 10, 2022
Updated
Aug 2, 2024
Vendor
Microweber
Product
Microweber
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 10, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=unspecified <1.2.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Microweber · Microweberversion=unspecified <1.2.11

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
9.8huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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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