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CVE-2025-12848: XSS vulnerability when rendering filename in Webform Multiform

Modified
Published 26-11-2025Last modified 26-03-2026

Vulnerability summary

CVE-2025-12848 is a high (CVSS 7.0) vulnerability in drupal. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 29.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.0/10
010
High · v4.0 (CVE.org)
EPSS score
0.36%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 26-11-2025
    PublishedVulnerability first disclosed.
  2. 26-03-2026
    Last modifiedVulnerability information updated.

Description

Webform Multiple File Upload module for Drupal 7.x contains a cross-site scripting (XSS) vulnerability in the file name renderer. An unauthenticated attacker can exploit this vulnerability by uploading a file with a malicious filename containing JavaScript code (e.g., "<img src=1 onerror=alert(document.domain)>") to a Webform node with a Multifile field where file type validation is disabled. This allows the execution of arbitrary scripts in the context of the victim's browser. The issue is present in a third-party library and has been addressed in a patch available at  https://github.com/fyneworks/multifile/pull/44 . Users are advised to apply the provided patch or update to a fixed version of the module.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

29%

Versus all other CVEs

30-day change

Increase +0.02 pp

From 0.33% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Drupal1 product
  • drupal≥ 7.x-1.0, ≤ 7.x-1.6
Webform_multiple_file_upload_project1 product

2 vendors · 2 products

References

4 links