CVE-2018-25050Public exploitNetwork attack vector

Cross-site scripting via unescaped optgroup label

Published Dec 28, 2022 · Updated Apr 10, 2025

Cross-site scripting in Harvest Chosen 1.8.6 and earlier allows remote attackers to execute script through a crafted optgroup label. AbstractChosen.choice_label inserts item.group_label into selected-option HTML without escape_html(), so markup from an optgroup label becomes executable content. Exploitation requires include_group_label_in_selected to be enabled and a user to select an option whose group label contains attacker-controlled markup.

CVSS severity6.1
Medium
EPSS probability0.60%
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 Harvest Chosen 1.8.6 and earlier allows remote attackers to execute script through a crafted optgroup label. AbstractChosen.choice_label inserts item.group_label into selected-option HTML without escape_html(), so markup from an optgroup label becomes executable content. Exploitation requires include_group_label_in_selected to be enabled and a user to select an option whose group label contains attacker-controlled markup.

The record

CVE
CVE-2018-25050
Published
Dec 28, 2022
Updated
Apr 10, 2025
Vendor
Harvest
Product
Chosen
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.8.0
  2. Affected versionversion=1.8.1
  3. Affected versionversion=1.8.2
  4. Affected versionversion=1.8.3
  5. Affected versionversion=1.8.4
  6. Affected versionversion=1.8.5
  7. Affected versionversion=1.8.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Harvest · Chosenversion=1.8.0; version=1.8.1; version=1.8.2; version=1.8.3; version=1.8.4; version=1.8.5; version=1.8.6

Published CVSS scores

3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
6.1NIST NVDCVSS: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')
T1203Exploitation for Client Execution

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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