CVE-2022-42948Known exploitationPublic exploitNetwork attack vector

Remote code execution via Swing object rendering

Published Mar 24, 2023 · Updated Oct 21, 2025

HTML injection in Cobalt Strike 4.7.1 allows remote attackers to execute code in the operator UI through crafted Beacon data. Swing ObjectView instantiates the class named by an unescaped object tag and invokes setters such as JSVGCanvas.setURI, which loads attacker-controlled SVG and Java code. Exploitation requires a simulated or tampered Beacon to return malicious field data and an operator to open an affected graphical view, after which code runs on the operator's machine.

CVSS severity9.8
Critical
EPSS probability2.71%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTML injection in Cobalt Strike 4.7.1 allows remote attackers to execute code in the operator UI through crafted Beacon data. Swing ObjectView instantiates the class named by an unescaped object tag and invokes setters such as JSVGCanvas.setURI, which loads attacker-controlled SVG and Java code. Exploitation requires a simulated or tampered Beacon to return malicious field data and an operator to open an affected graphical view, after which code runs on the operator's machine.

The record

CVE
CVE-2022-42948
Published
Mar 24, 2023
Updated
Oct 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-116, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-116Improper Encoding or Escaping of Output
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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