CVE-2017-11326: An issue was discovered in Tilde CMS 1.0.1

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2017-11326 is a high-severity flaw (CVSS 7.5) affecting tilde cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Tilde CMS 1.0.1. It is possible to bypass the implemented restrictions on arbitrary file upload via a filename.+php manipulation.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-434
Published	2017-07-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: tilde cms project

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

Am I affected?

Timeline

2017-07-24 13:29 UTCPublished CVE record published
2026-06-17 01:01 UTCUpdated Record last modified

tilde cms project tilde cms DOWNGRADE

Affected: 1.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.1

1. Check installed version

apt-cache policy tilde-cms || rpm -q tilde-cms || tilde-cms --version

2. No fixed release: DOWNGRADE to a release before 1.0.1 (Debian / Ubuntu)

apt-cache madison tilde-cms sudo apt install tilde-cms=<VERSION_BEFORE_1.0.1> sudo apt-mark hold tilde-cms

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list tilde-cms sudo dnf downgrade tilde-cms-<VERSION_BEFORE_1.0.1> sudo dnf versionlock add tilde-cms

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2017-11326?

tilde cms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-11326 being exploited?

CVE-2017-11326 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-2017-11326 affect?

CVE-2017-11326 affects tilde cms. Severity is high (CVSS 7.5). An issue was discovered in Tilde CMS 1.0.1. It is possible to bypass the implemented restrictions on arbitrary file upload via a filename.+php manipulation.

How urgent is CVE-2017-11326?

Priority 53/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2017-11327 MEDIUM 6.5 DOWNGRADE An issue was discovered in Tilde CMS 1.0.1
CVE-2017-11325 HIGH 7.5 DOWNGRADE An issue was discovered in Tilde CMS 1.0.1
CVE-2017-11324 CRITICAL 9.8 DOWNGRADE An issue was discovered in Tilde CMS 1.0.1

References

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