CVE-2023-0588: The Catalyst Connect Zoho CRM Client Portal WordPress plugin before 2.1.0 does not sanitize and escape a param

Q: How do I fix CVE-2023-0588?

zoho crm client portal: upgrade to 2.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2023-0588 being exploited?

CVE-2023-0588 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-2023-0588 affect?

CVE-2023-0588 affects zoho crm client portal. Severity is medium (CVSS 6.1). The Catalyst Connect Zoho CRM Client Portal WordPress plugin before 2.1.0 does not sanitize and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high-privilege

Q: How urgent is CVE-2023-0588?

Priority 36/100. Public exploit reference

Routine

MEDIUM 6.1UPGRADE

CVE-2023-0588 is a medium-severity flaw (CVSS 6.1) affecting zoho crm client portal. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Catalyst Connect Zoho CRM Client Portal WordPress plugin before 2.1.0 does not sanitize and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high-privilege users such as admin.

Why this priority

Public exploit reference

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	0.5% (top 60%)
CISA exploited list	No
Published	2023-06-27
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: catalystconnect

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

Am I affected?

Timeline

2023-06-27 14:15 UTCPublished CVE record published
2026-06-17 05:25 UTCUpdated Record last modified

catalystconnect zoho crm client portal UPGRADE

Affected: < 2.1.0

Fixed in: 2.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy zoho-crm-client-portal || rpm -q zoho-crm-client-portal || zoho-crm-client-portal --version

2. UPGRADE to 2.1.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade zoho-crm-client-portal

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade zoho-crm-client-portal

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-2023-0588?

zoho crm client portal: upgrade to 2.1.0. Exact commands for each OS are on this page.

Is CVE-2023-0588 being exploited?

CVE-2023-0588 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-2023-0588 affect?

CVE-2023-0588 affects zoho crm client portal. Severity is medium (CVSS 6.1). The Catalyst Connect Zoho CRM Client Portal WordPress plugin before 2.1.0 does not sanitize and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high-privilege

How urgent is CVE-2023-0588?

Priority 36/100. Public exploit reference

Software pages

WordPress vulnerabilities · Zoho ManageEngine vulnerabilities

References

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