CVE-2022-0822Network attack vector

Authenticated script execution via unsanitized shortcode usage

Published Mar 11, 2022 · Updated Aug 2, 2024

Reflected XSS in Orchard Core before 1.3.0 allows remote authenticated users to execute script through crafted shortcode usage. The Shortcodes AdminController accepts the Usage field and returns it to an HTML view without applying IHtmlSanitizerService sanitization. Low-privileged access is required; successful exploitation runs script in the affected browser and can read or alter data available to that session.

CVSS severity5.4
Medium
EPSS probability0.62%
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 Orchard Core before 1.3.0 allows remote authenticated users to execute script through crafted shortcode usage. The Shortcodes AdminController accepts the Usage field and returns it to an HTML view without applying IHtmlSanitizerService sanitization. Low-privileged access is required; successful exploitation runs script in the affected browser and can read or alter data available to that session.

The record

CVE
CVE-2022-0822
Published
Mar 11, 2022
Updated
Aug 2, 2024
Vendor
Orchard Core
Product
Orchard Core
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=unspecified <1.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Orchard Core · Orchard Coreversion=unspecified <1.3.0

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4huntr.devCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/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 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')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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