GHSA-78fx-h6xr-vch4 BIT-laravel-2025-27515 CVE-2025-27515
Laravel has a File Validation Bypass
Critical
Packagist
- Severity
- 0.0 / 10
- Critical · CVSS 4.0
- Exploit chance (EPSS)
- 0.75%
- Chance of exploitation in the next 30 days. Higher than 54.94% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-155 Improper Neutralization of Wildcards or Matching Symbols
- Fix
12.1.1- Upgrade laravel/framework to this version or later
Description
When using wildcard validation to validate a given file or image field array (files.*), a user-crafted malicious request could potentially bypass the validation rules.
Affected versions
Packagist
| Package | Vulnerable | Fixed in |
|---|---|---|
| laravel/framework | >= 12.0.0, < 12.1.1 |
12.1.1 |
| laravel/framework | >= 11.0.0, < 11.44.1 |
11.44.1 |
| laravel/framework | < 10.48.29 |
10.48.29 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
laravel/framework Packagist → 12.1.1
- composer
composer require laravel/framework:^12.1.1
Severity breakdown
CVSS 4.0 0.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- None
- User interaction
- None
- Confidentiality (vulnerable system)
- Low
- Integrity (vulnerable system)
- Low
- Availability (vulnerable system)
- None
- Confidentiality (subsequent systems)
- None
- Integrity (subsequent systems)
- None
- Availability (subsequent systems)
- None
CVSS 3.1 9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Weakness
CWE-155: Improper Neutralization of Wildcards or Matching Symbols
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as wildcards or matching symbols when they are sent to a downstream component.
How to prevent it
- Developers should anticipate that wildcard or matching elements will be injected/removed/manipulated in the input vectors of their product. Use an appropriate combination of denylists and allowlists to ensure only valid, expected and appropriate input is processed by the system.
- Implementation: Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does. When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue." Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
- Implementation: While it is risky to use dynamically-generated query strings, code, or commands that mix control and data together, sometimes it may be unavoidable. Properly quote arguments and escape any special characters within those arguments. The most conservative approach is to escape or filter all characters that do not pass an extremely strict allowlist (such as everything that is not alphanumeric or white space). If some special characters are still needed, such as white space, wrap each argument in quotes after the escaping/filtering step. Be careful of argument injection (CWE-88).
- Implementation: Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| CVE-2018-15133 Laravel Framework RCE Vulnerability | High Known exploited | Also affects laravel/framework |
| GHSA-f9x3-7vq9-cph6 Laravel TokenGuard authentication bypass through non-string API credentials | Critical | Also affects laravel/framework |
| GHSA-5wcm-3v2w-8362 Laravel relationship inclusion can trigger unauthorized data destruction | Medium | Also affects laravel/framework |
| GHSA-jh5r-qr3c-85q8 Laravel: XSS in Debug Page Information | Low | Also affects laravel/framework |
| GHSA-crmm-hgp2-wgrp Laravel Framework: Temporary Signed URL Path Confusion | Medium | Also affects laravel/framework |
| GHSA-5vg9-5847-vvmq Laravel Framework: CRLF injection in default email rule | High | Also affects laravel/framework |
| GHSA-83wp-f5c3-hqqr Laravel framework susceptible to reflected cross-site scripting | Medium | Also affects laravel/framework |
| GHSA-546h-56qp-8jmw Laravel framework susceptible to reflected cross-site scripting | Medium | Also affects laravel/framework |
MergeHarbor checks every repository's dependencies against this database, ranks what matters by exploitability and reachability, routes it to the owning team and opens the fix pull request.
Check your repos with MergeHarbor