PatchTheCVECVE-2017-6905: An issue was discovered in concrete5 <= 5.6.3.4
CVE-2017-6905 is a medium-severity flaw (CVSS 6.1) affecting concrete5. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An issue was discovered in concrete5 <= 5.6.3.4. The vulnerability exists due to insufficient filtration of user-supplied data (disable_choose) passed to the "concrete5-legacy-master/web/concrete/tools/files/search_dialog.php" URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.1 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 1.0% (top 38%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2017-03-15 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-6905?
concrete5: upgrade to newer than 5.6.3.4. Exact commands for each OS are on this page.
Is CVE-2017-6905 being exploited?
CVE-2017-6905 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-6905 affect?
CVE-2017-6905 affects concrete5. Severity is medium (CVSS 6.1). An issue was discovered in concrete5 <= 5.6.3.4. The vulnerability exists due to insufficient filtration of user-supplied data (disable_choose) passed to the "concrete5-legacy-master/web/concrete/tools/files/search_dialog.php" URL. An attac
How urgent is CVE-2017-6905?
Priority 37/100. No elevated risk signals yet.
Software pages
Related CVEs
- CVE-2017-6908 MEDIUM 6.1 UPGRADE An issue was discovered in concrete5 <= 5.6.3.4
- CVE-2015-3989 MEDIUM 4.3 UPGRADE Multiple cross-site scripting (XSS) vulnerabilities in concrete5 before 5.7.4 allow remote attackers to inject
- CVE-2015-2250 MEDIUM 4.3 UPGRADE Multiple cross-site scripting (XSS) vulnerabilities in concrete5 before 5.7.4 allow remote attackers to inject
- CVE-2014-9526 MEDIUM 4.3 UPGRADE DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in concrete5 5.7.2.1, 5.7.2, and earlier allow remote atta
- CVE-2014-5108 MEDIUM 4.3 DOWNGRADE DOWNGRADE Cross-site scripting (XSS) vulnerability in single_pages\download_file.php in concrete5 before 5.6.3 allows re