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🛡️ CVE-2025-9406 — lemon

🟡 CVSS 6.3 — Medium ⚠️ Exploit Public CWE-284 NVD
6.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A weakness has been identified in xuhuisheng lemon up to 1.13.0. This affects the function uploadImage of the file CmsArticleController.java of the component com.mossle.cms.web.CmsArticleController.uploadImage. This manipulation of the argument Upload causes unrestricted upload. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability low.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
  • Integrity impact: Low — limited, and the attacker does not choose what is affected.
  • Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

CVE-2025-9406 is classified as CWE-284: Improper Access Control. The software does not restrict an action to the actors that should be allowed to perform it.

Affected software

CVE-2025-9406 is recorded against 1 package.

  • lemon (fixed in 1.13.0)

Timeline and source

Published on 25 August 2025 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

github.com
github.com
vuldb.com
vuldb.com
vuldb.com
github.com
github.com
vuldb.com

Other advisories for this package

lemon has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-284: Improper Access Control) in other software:

Details

Severity MEDIUM
CVSS Score 6.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CWE CWE-284
Public Exploit ⚠️ Yes
Source NVD
Published 2025-08-25
Updated 2026-08-20
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
lemon — 1.13.0

References

Permissions Required, VDB Entry https://vuldb.com/?ctiid.321242
Third Party Advisory, VDB Entry https://vuldb.com/?id.321242
Third Party Advisory, VDB Entry https://vuldb.com/?submit.633593
Third Party Advisory, VDB Entry https://vuldb.com/?submit.633593

Similar Threats

Exploit Protection

Are you running lemon?

CVE-2025-9406 carries CVSS 6.3 Medium rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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