CVE-2023-1404Network attack vector

Stored XSS via misordered author-name escaping

Published Jun 9, 2023 · Updated Apr 8, 2026

Stored XSS in Weaver Theme Weaver Show Posts 1.6 and earlier allows remote authenticated users to inject scripts via a profile display name. In includes/atw-showposts-sc.php, esc_attr runs before sprintf inserts get_the_author output, leaving the displayed author name unescaped. Contributor-level access is required, and the script runs when another user views or previews an affected post, enabling actions in that user's session.

CVSS severity6.4
Medium
EPSS probability0.51%
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 Weaver Theme Weaver Show Posts 1.6 and earlier allows remote authenticated users to inject scripts via a profile display name. In includes/atw-showposts-sc.php, esc_attr runs before sprintf inserts get_the_author output, leaving the displayed author name unescaped. Contributor-level access is required, and the script runs when another user views or previews an affected post, enabling actions in that user's session.

The record

CVE
CVE-2023-1404
Published
Jun 9, 2023
Updated
Apr 8, 2026
Vendor
Weaver Theme
Product
Weaver Show Posts
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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 <=1.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Weaver Theme · Weaver Show Postsversion=0 <=1.6

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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