CVE-2023-0214Public exploitNetwork attack vector

Cross-site scripting via unencoded P3P parameter

Published Jan 18, 2023 · Updated Apr 3, 2025

Reflected XSS in affected Skyhigh Secure Web Gateway 10.x, 11.x, and 12.x releases allows remote attackers to inject scripts via crafted URLs. The Single Sign-On plugin's SetLoginToken action copies the p parameter into the P3P response header without encoding carriage returns or line feeds, enabling injected headers and a replacement response body. A victim must browse through the gateway and open a crafted URL or follow a redirect; injected JavaScript then executes in the chosen site's origin, enabling access to that site's browser-visible data and actions.

CVSS severity6.1
Medium
EPSS probability1.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in affected Skyhigh Secure Web Gateway 10.x, 11.x, and 12.x releases allows remote attackers to inject scripts via crafted URLs. The Single Sign-On plugin's SetLoginToken action copies the p parameter into the P3P response header without encoding carriage returns or line feeds, enabling injected headers and a replacement response body. A victim must browse through the gateway and open a crafted URL or follow a redirect; injected JavaScript then executes in the chosen site's origin, enabling access to that site's browser-visible data and actions.

The record

CVE
CVE-2023-0214
Published
Jan 18, 2023
Updated
Apr 3, 2025
Vendor
Skyhigh Security
Product
Skyhigh Secure Web Gateway
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 3, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.x <10.2.17
  2. Affected versionversion=11.x <11.2.6
  3. Affected versionversion=12.x <12.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Skyhigh Security · Skyhigh Secure Web Gatewayversion=10.x <10.2.17; version=11.x <11.2.6; version=12.x <12.0.1

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1TrellixCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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