Cross-site Scripting (XSS) Affecting phpoffice/phpexcel package, versions >=0.0.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PHP-PHPOFFICEPHPEXCEL-9299810
- published7 Mar 2025
- disclosed7 Oct 2024
- creditMatthew Rollings
Introduced: 7 Oct 2024
CVE-2024-45060 (opens in a new tab)How to fix?
There is no fixed version for phpoffice/phpexcel.
Overview
Affected versions of this package are vulnerable to Cross-site Scripting (XSS) through the discriminantFormula and r1Formula processes due to improper user input sanitization. An attacker can execute arbitrary JavaScript code by injecting malicious input into the POST parameters used in these formulas.
Note:
This is only exploitable if the sample script 45_Quadratic_equation_solver.php is accessible and used in a web environment. These sample scripts are not included if the package is used from Composer, but only if the entire git repository is included.
PoC
Access
45_Quadratic_equation_solver.phpin a browserEnter any valid values for for
band c, and enter the following for a
1) & ("1)),1)&char(60)&char(105)&char(109)&char(103)&char(32)&char(115)&char(114)&char(99)&char(61)&char(120)&char(32)&char(111)&char(110)&char(101)&char(114)&char(114)&char(111)&char(114)&char(61)&char(97)&char(108)&char(101)&char(114)&char(116)&char(40)&char(41)&char(62)&POWER(((1") &n("1")&(1
- Press submit and observe that JavaScript is executed.