CVE-2023-45073Network attack vector

Browser script execution via unsanitized admin settings

Published Oct 18, 2023 · Updated Apr 28, 2026

Stored XSS in Michael Koch Mendeley Plugin 1.3.2 and earlier allows remote authenticated users to execute scripts through admin settings. The admin settings path stores values without sufficient input sanitization and later renders them without output escaping. Exploitation requires administrator-level access and a victim to view the injected page, and exposure is limited to multisite installations or sites with unfiltered_html disabled.

CVSS severity5.9
Medium
EPSS probability0.32%
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 Michael Koch Mendeley Plugin 1.3.2 and earlier allows remote authenticated users to execute scripts through admin settings. The admin settings path stores values without sufficient input sanitization and later renders them without output escaping. Exploitation requires administrator-level access and a victim to view the injected page, and exposure is limited to multisite installations or sites with unfiltered_html disabled.

The record

CVE
CVE-2023-45073
Published
Oct 18, 2023
Updated
Apr 28, 2026
Vendor
Michael Koch
Product
Mendeley Plugin
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=n/a <=1.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Michael Koch · Mendeley Pluginversion=n/a <=1.3.2

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
5.9PatchstackCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
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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