CVE-2025-26260Public exploitNetwork attack vector

Authenticated server hang via executable Svelte filename

Published Mar 12, 2025 · Updated Mar 19, 2025

Code injection in Plenti 0.7.16 and earlier allows remote authenticated users to hang the server through a crafted Svelte file name. The postLocal handler passes the attacker-controlled file value through componentSignature, concatenates it into ssrStr, and compileSvelte executes the resulting string in v8go. File-posting access is required, and the sandbox limits the demonstrated result to a service hang; host command execution requires a separate v8go sandbox escape.

CVSS severity8.8
High
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Plenti 0.7.16 and earlier allows remote authenticated users to hang the server through a crafted Svelte file name. The postLocal handler passes the attacker-controlled file value through componentSignature, concatenates it into ssrStr, and compileSvelte executes the resulting string in v8go. File-posting access is required, and the sandbox limits the demonstrated result to a service hang; host command execution requires a separate v8go sandbox escape.

The record

CVE
CVE-2025-26260
Published
Mar 12, 2025
Updated
Mar 19, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 19, 2025Record 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

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.5GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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-94Improper Control of Generation of Code ('Code Injection')
T1499.004Application or System Exploitation

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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