CVE-2017-20089: A vulnerability was found in Gwolle Guestbook Plugin 1.7.4

Routine

LOW 3.5DOWNGRADE

CVE-2017-20089 is a low-severity flaw (CVSS 3.5) affecting gwolle guestbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in Gwolle Guestbook Plugin 1.7.4. It has been rated as problematic. This issue affects some unknown processing. The manipulation leads to basic cross site scripting. The attack may be initiated remotely.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-80, CWE-79
Published	2022-06-23
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: gwolle guestbook project

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

Am I affected?

Timeline

2022-06-23 05:15 UTCPublished CVE record published
2026-06-17 01:15 UTCUpdated Record last modified

gwolle guestbook project gwolle guestbook DOWNGRADE

Affected: 1.7.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.7.4

1. Check installed version

apt-cache policy gwolle-guestbook || rpm -q gwolle-guestbook || gwolle-guestbook --version

2. No fixed release: DOWNGRADE to a release before 1.7.4 (Debian / Ubuntu)

apt-cache madison gwolle-guestbook sudo apt install gwolle-guestbook=<VERSION_BEFORE_1.7.4> sudo apt-mark hold gwolle-guestbook

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

dnf --showduplicates list gwolle-guestbook sudo dnf downgrade gwolle-guestbook-<VERSION_BEFORE_1.7.4> sudo dnf versionlock add gwolle-guestbook

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-2017-20089?

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

Is CVE-2017-20089 being exploited?

CVE-2017-20089 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-2017-20089 affect?

CVE-2017-20089 affects gwolle guestbook. Severity is low (CVSS 3.5). A vulnerability was found in Gwolle Guestbook Plugin 1.7.4. It has been rated as problematic. This issue affects some unknown processing. The manipulation leads to basic cross site scripting. The attack may be initiated remotely.

How urgent is CVE-2017-20089?

Priority 31/100. Public exploit reference

Related CVEs

CVE-2021-24980 MEDIUM 6.1 UPGRADE The Gwolle Guestbook WordPress plugin before 4.2.0 does not sanitise and escape the gwolle_gb_user_email param

References

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