CVE-2024-27705Public exploit

Stored script execution via crafted PDF upload

Published Apr 3, 2024 · Updated Aug 28, 2024

Stored cross-site scripting in Leantime 3.0.6 allows remote attackers to execute JavaScript by uploading a crafted PDF through files/browse. The file workflow stores the PDF without neutralizing its embedded JavaScript, so opening the uploaded document executes the payload in the viewer’s browser context. Execution requires a user to open the stored PDF; public material does not establish whether uploading it requires authentication.

CVSS severity7.6
High
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Leantime 3.0.6 allows remote attackers to execute JavaScript by uploading a crafted PDF through files/browse. The file workflow stores the PDF without neutralizing its embedded JavaScript, so opening the uploaded document executes the payload in the viewer’s browser context. Execution requires a user to open the stored PDF; public material does not establish whether uploading it requires authentication.

The record

CVE
CVE-2024-27705
Published
Apr 3, 2024
Updated
Aug 28, 2024
Vendor
Leantime
Product
Leantime
Classifications
CWE-94, T1204.002
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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=3.0.6

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Leantime · Leantimeversion=3.0.6

Published CVSS scores

7.6CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1204.002Malicious 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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