CVE-2022-4929Network attack vector

Browser content injection via unsanitized image alt text

Published Mar 6, 2023 · Updated Aug 3, 2024

Cross-site scripting in Learnetic icPlayer 0.818 and earlier allows remote authenticated users to inject markup through image alt text. The tts-utils image-processing loop concatenates an unsanitized img alt attribute into a span that jQuery inserts into the DOM. Exploitation requires control of the attribute and user interaction, after which attacker-controlled markup executes in the affected page context.

CVSS severity3.5
Low
EPSS probability0.51%
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 Learnetic icPlayer 0.818 and earlier allows remote authenticated users to inject markup through image alt text. The tts-utils image-processing loop concatenates an unsanitized img alt attribute into a span that jQuery inserts into the DOM. Exploitation requires control of the attribute and user interaction, after which attacker-controlled markup executes in the affected page context.

The record

CVE
CVE-2022-4929
Published
Mar 6, 2023
Updated
Aug 3, 2024
Vendor
Learnetic
Product
icPlayer
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 6, 2023CVE 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=0.818

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Learnetic · icPlayerversion=0.818

Published CVSS scores

3.5VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.0VulDB CNAAV:N/AC:L/Au:S/C:N/I:P/A:N
6.1NVDCVSS: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
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.

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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