CVE-2022-44303Public exploitNetwork attack vector

Reflected XSS via unescaped delayed-job parameters

Published Dec 13, 2022 · Updated Jul 9, 2026

Cross-site scripting in Resque Scheduler 1.27.4 through 4.10.1 allows remote authenticated users to execute JavaScript via delayed-job URLs. The delayed_schedules.erb template inserts schedule_job and args values into generated HTML without escaping them. Exploitation requires low-privileged access and a victim who follows a crafted link, after which script runs in that victim's browser context.

CVSS severity6.3
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

Cross-site scripting in Resque Scheduler 1.27.4 through 4.10.1 allows remote authenticated users to execute JavaScript via delayed-job URLs. The delayed_schedules.erb template inserts schedule_job and args values into generated HTML without escaping them. Exploitation requires low-privileged access and a victim who follows a crafted link, after which script runs in that victim's browser context.

The record

CVE
CVE-2022-44303
Published
Dec 13, 2022
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, CWE-233, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.3GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-233Improper Handling of Parameters
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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