CVE-2017-11658: In the WP Rocket plugin 2.9.3 for WordPress, the Local File Inclusion mitigation technique is to trim traversa

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2017-11658 is a high-severity flaw (CVSS 7.5) affecting wp-rocket. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In the WP Rocket plugin 2.9.3 for WordPress, the Local File Inclusion mitigation technique is to trim traversal characters (..) -- however, this is insufficient to stop remote attacks and can be bypassed by using 0x00 bytes, as demonstrated by a .%00.../.%00.../ attack.

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	3.3% (top 11%)
CISA exploited list	No
Weakness	CWE-22
Published	2017-07-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: wp-rocket

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

Am I affected?

Timeline

2017-07-26 15:29 UTCPublished CVE record published
2026-06-17 01:02 UTCUpdated Record last modified

wp-rocket wp-rocket DOWNGRADE

Affected: 1.3.0 · 1.3.1 · 1.3.2 · 1.3.3 · 1.3.4 · 1.3.5 · 1.3.6 · 1.3.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.3.0

1. Check installed version

apt-cache policy wp-rocket || rpm -q wp-rocket || wp-rocket --version

2. No fixed release: DOWNGRADE to a release before 1.3.0 (Debian / Ubuntu)

apt-cache madison wp-rocket sudo apt install wp-rocket=<VERSION_BEFORE_1.3.0> sudo apt-mark hold wp-rocket

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

dnf --showduplicates list wp-rocket sudo dnf downgrade wp-rocket-<VERSION_BEFORE_1.3.0> sudo dnf versionlock add wp-rocket

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-2017-11658?

wp-rocket: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-11658 being exploited?

CVE-2017-11658 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-2017-11658 affect?

CVE-2017-11658 affects wp-rocket. Severity is high (CVSS 7.5). In the WP Rocket plugin 2.9.3 for WordPress, the Local File Inclusion mitigation technique is to trim traversal characters (..) -- however, this is insufficient to stop remote attacks and can be bypassed by using 0x00 bytes, as demonstrated

How urgent is CVE-2017-11658?

Priority 58/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities

References

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