CVE-2018-12040: sensiolabs symfony Cross-site Scripting
Vulnerability summary
CVE-2018-12040 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in sensiolabs symfony. EPSS estimates a 1.31% chance of exploitation in the next 30 days, higher than 70.3% of scored vulnerabilities. 2 public exploits are recorded.
Timeline
- 13-06-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Reflected Cross-site scripting (XSS) vulnerability in the web profiler in SensioLabs Symfony 3.3.6 allows remote attackers to inject arbitrary web script or HTML via the "file" parameter, aka an _profiler/open?file= URI. NOTE: The vendor states "The XSS ... is in the web profiler, a tool that should never be deployed in production (so, we don't handle those issues as security issues).
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
1.31%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
0.00 pp
From 1.31% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (packetstormsecurity.com)
Maturity: unknown
Exploit Reference (securityfocus.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- symfony< 3.4.12+dfsg-1
Sensiolabs1 product
- symfonyEOL3.3.6
2 vendors · 2 products
References
3 links- packetstormsecurity.com/files/148125/SensioLabs-Symfony-3.3.6-Cross-Site-Scripting.htmlX Refsource MISCExploitThird Party AdvisoryVDB Entry
- www.securityfocus.com/archive/1/542071/100/0/threadedMailing ListX Refsource BUGTRAQExploitThird Party AdvisoryVDB Entry