PatchTheCVECVE-2017-6909: An issue was discovered in Shimmie <= 2.5.1
CVE-2017-6909 is a medium-severity flaw (CVSS 6.1) affecting shimmie. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An issue was discovered in Shimmie <= 2.5.1. The vulnerability exists due to insufficient filtration of user-supplied data (log) passed to the "shimmie2-master/ext/chatbox/history/index.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 | 0.8% (top 45%) |
| 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-2017-6909?
shimmie: upgrade to newer than 2.5.1. Exact commands for each OS are on this page.
Is CVE-2017-6909 being exploited?
CVE-2017-6909 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-2017-6909 affect?
CVE-2017-6909 affects shimmie. Severity is medium (CVSS 6.1). An issue was discovered in Shimmie <= 2.5.1. The vulnerability exists due to insufficient filtration of user-supplied data (log) passed to the "shimmie2-master/ext/chatbox/history/index.php" URL. An attacker could execute arbitrary HTML and
How urgent is CVE-2017-6909?
Priority 35/100. No elevated risk signals yet.