CVE-2022-1964Public exploitNetwork attack vector

Stored XSS via unsanitized SVG uploads

Published Jun 27, 2022 · Updated Aug 3, 2024

Stored XSS in Benjamin Zekavica Easy SVG Support before 3.3.0 allows remote authenticated users to inject script via SVG uploads. The media-library upload path accepts SVG files containing script elements without sanitizing their markup, and WordPress serves the stored file directly. Author-level access is sufficient to plant the file, and the payload runs when another user opens its upload URL, allowing script execution in that site's origin.

CVSS severity5.4
Medium
EPSS probability0.60%
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 Benjamin Zekavica Easy SVG Support before 3.3.0 allows remote authenticated users to inject script via SVG uploads. The media-library upload path accepts SVG files containing script elements without sanitizing their markup, and WordPress serves the stored file directly. Author-level access is sufficient to plant the file, and the payload runs when another user opens its upload URL, allowing script execution in that site's origin.

The record

CVE
CVE-2022-1964
Published
Jun 27, 2022
Updated
Aug 3, 2024
Vendor
Benjamin Zekavica
Product
Easy SVG Support
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 27, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=3.3.0 <3.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Benjamin Zekavica · Easy SVG Supportversion=3.3.0 <3.3.0

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NIST NVDAV:N/AC:M/Au:S/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
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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