CVE-2017-11717: MetInfo through 5.3.17 accepts the same CAPTCHA response for 120 seconds, which makes it easier for remote att

Q: How do I fix CVE-2017-11717?

metinfo: upgrade to newer than 5.3.17. Exact commands for each OS are on this page.

Q: Is CVE-2017-11717 being exploited?

CVE-2017-11717 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-11717 affect?

CVE-2017-11717 affects metinfo. Severity is high (CVSS 7.5). MetInfo through 5.3.17 accepts the same CAPTCHA response for 120 seconds, which makes it easier for remote attackers to bypass intended challenge requirements by modifying the client-server data stream, as demonstrated by the login/findpass

Q: How urgent is CVE-2017-11717?

Priority 49/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2017-11717 is a high-severity flaw (CVSS 7.5) affecting metinfo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MetInfo through 5.3.17 accepts the same CAPTCHA response for 120 seconds, which makes it easier for remote attackers to bypass intended challenge requirements by modifying the client-server data stream, as demonstrated by the login/findpass page.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Weakness	CWE-290
Published	2017-07-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: metinfo project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-07-28 05:29 UTCPublished CVE record published
2026-06-17 01:02 UTCUpdated Record last modified

metinfo project metinfo UPGRADE

Affected: <= 5.3.17

Fixed in: newer than 5.3.17

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy metinfo || rpm -q metinfo || metinfo --version

2. UPGRADE to newer than 5.3.17 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade metinfo

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade metinfo

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2017-11717?

metinfo: upgrade to newer than 5.3.17. Exact commands for each OS are on this page.

Is CVE-2017-11717 being exploited?

CVE-2017-11717 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-2017-11717 affect?

CVE-2017-11717 affects metinfo. Severity is high (CVSS 7.5). MetInfo through 5.3.17 accepts the same CAPTCHA response for 120 seconds, which makes it easier for remote attackers to bypass intended challenge requirements by modifying the client-server data stream, as demonstrated by the login/findpass

How urgent is CVE-2017-11717?

Priority 49/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-21517 MEDIUM 6.1 DOWNGRADE Cross Site Scripting (XSS) vulnerability in MetInfo 7.0.0 via the gourl parameter in login.php.
CVE-2020-20585 HIGH 7.5 DOWNGRADE A blind SQL injection in /admin/?n=logs&c=index&a=dode of Metinfo 7.0 beta allows attackers to access sensitiv
CVE-2026-29014 CRITICAL 9.8 DOWNGRADE MetInfo CMS versions 7.9, 8.0, and 8.1 contain an unauthenticated PHP code injection vulnerability that allows
CVE-2025-63551 HIGH 7.5 UPGRADE A Server-Side Request Forgery (SSRF) vulnerability, achievable through an XML External Entity (XXE) injection,
CVE-2025-60454 MEDIUM 6.1 DOWNGRADE A stored Cross-Site Scripting (XSS) vulnerability has been discovered in MetInfo CMS version 8.0

References

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