CVE-2025-31855Network attack vector

Stored script execution in privileged user browsers

Published Apr 1, 2025 · Updated Apr 28, 2026

Stored cross-site scripting in Softnwords SMM API 6.0.31 and earlier allows remote authenticated users to inject scripts into website pages. Patchstack has not published the affected input, code locus, or missing output-encoding operation that stores and renders the script. Low-privileged access and a privileged user's interaction are required; successful execution can alter displayed content and expose data in the victim's browser.

CVSS severity6.5
Medium
EPSS probability0.27%
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 Softnwords SMM API 6.0.31 and earlier allows remote authenticated users to inject scripts into website pages. Patchstack has not published the affected input, code locus, or missing output-encoding operation that stores and renders the script. Low-privileged access and a privileged user's interaction are required; successful execution can alter displayed content and expose data in the victim's browser.

The record

CVE
CVE-2025-31855
Published
Apr 1, 2025
Updated
Apr 28, 2026
Vendor
Softnwords
Product
SMM API
Classifications
CWE-79, CAPEC-592, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=0 <=6.0.31

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Softnwords · SMM APIversion=0 <=6.0.31

Published CVSS scores

6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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