CVE-2026-54682Public exploit

Stored XSS via unencoded markdown-disabled HTML export

Published Aug 21, 2026 · Updated Aug 25, 2026

Stored XSS in DiscordChatExporter before 2.47.2 allows attackers to execute JavaScript when a generated HTML export is opened. The MessageGroupTemplate.cshtml helpers pass attacker-controlled message and embed text to Html.Raw without entity encoding when markdown formatting is disabled. Exploitation requires a crafted webhook or bot message, an HTML export with markdown disabled, and a user opening the file; the script can read the export or alter its displayed content.

CVSS severity8.2
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in DiscordChatExporter before 2.47.2 allows attackers to execute JavaScript when a generated HTML export is opened. The MessageGroupTemplate.cshtml helpers pass attacker-controlled message and embed text to Html.Raw without entity encoding when markdown formatting is disabled. Exploitation requires a crafted webhook or bot message, an HTML export with markdown disabled, and a user opening the file; the script can read the export or alter its displayed content.

The record

CVE
CVE-2026-54682
Published
Aug 21, 2026
Updated
Aug 25, 2026
Vendor
Tyrrrz
Product
DiscordChatExporter
Classifications
CWE-79, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 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?

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

  1. Affected versionversion=< 2.47.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Tyrrrz · DiscordChatExporterversion=< 2.47.2

Published CVSS scores

8.2GitHubCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.002User Execution: Malicious File

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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