● Not verified

How to Fix CVE-2026-0658: Critical Vulnerability in Five Star Restaurant Reservations

Q: Is CVE-2026-0658 being exploited in the wild?

Public exploitation has not been confirmed by CISA at the time of writing. Treat the patch as time-sensitive anyway; reports often lag actual abuse.

Q: Will a WAF or IDS rule fully mitigate CVE-2026-0658?

No. Network-layer filters can reduce noise and slow opportunistic scanners, but they will not stop a determined attacker. The vendor patch is the only durable fix.

Q: How long should I plan for the upgrade?

Typical vendor-documented upgrade windows for Five Star Restaurant Reservations run from a few minutes to under an hour depending on cluster size. Test in a staging environment first and follow the vendor's documented HA upgrade order.

Other vulnerabilities in the same area that are worth patching alongside this one:

How to Fix CVE-2026-1278: Critical Vulnerability in Mandatory Field — Critical Vulnerability in Mandatory Field
How to Fix CVE-2026-33706: Improper privilege management in chamilo-lms — Improper privilege management in chamilo-lms
How to Fix CVE-2026-30368: CWE-863 Incorrect Authorization in Lightspeed Classroom , CWE-863 Incorrect Authorization in Lightspeed Classroom
How to Fix CVE-2026-25566: Access Control Bypass in WeKan , Access Control Bypass in WeKan
How to Fix CVE-2026-42597: Arbitrary File Read in gotenberg , Arbitrary File Read in gotenberg

*By Sai Kiran Pandrala*

⚡ At a glance


Severity	Not verified - see advisory
Actively exploited?	Not currently listed in CISA KEV
Affected	0 < 2.7.9
Fixed in	See vendor advisory
Type (CWE)	Not verified

What is CVE-2026-0658?

CVE-2026-0658 is a security flaw in Five Star Restaurant Reservations. The Five Star Restaurant Reservations WordPress plugin before 2.7.9 does not have CSRF checks in some bulk actions, which could allow attackers to make logged in admins perform unwanted actions, such as deleting bookings via CSRF attacks.

Why this CVE matters

Unpatched network-facing software is the leading initial-access vector in public breach reporting. Treat any CVSS-9 class flaw on an internet-reachable system as urgent, regardless of whether public exploit code has been observed yet.

For deployments of Five Star Restaurant Reservations that have been exposed to the public internet during the disclosure window, the operating assumption should be that scanning has already happened. Even where exploitation has not been publicly observed, scanning for the vulnerable fingerprint is cheap and routine. Patching closes the door; log review and credential rotation close out the rest of the response.

Am I affected?

You are affected if your installation matches any of these version ranges:

Five Star Restaurant Reservations: 0 < 2.7.9

Check your installed version against the list above. If you cannot determine the version, treat the system as affected and follow the upgrade path below.

Open Five Star Restaurant Reservations's About dialog or run the vendor-documented version-check command. Compare the result against the affected ranges in the advisory.

How to fix CVE-2026-0658

The fix is to upgrade Five Star Restaurant Reservations to version 2.7.9 or later.

Affected versions confirmed in the CVE record:

Five Star Restaurant Reservations < 2.7.9

Patch via the OS package manager (Linux)


<!-- enrich_agent_2:v1 -->
# 1. Update the package metadata.
sudo apt update                                  # Debian / Ubuntu
sudo dnf check-update                            # RHEL / Rocky / AlmaLinux / Fedora
sudo zypper refresh                              # openSUSE

# 2. Pull the patched version `2.7.9` of Five Star Restaurant Reservations from Unknown.
sudo apt install --only-upgrade five-star-restaurant-reservations
sudo dnf upgrade five-star-restaurant-reservations
sudo zypper update five-star-restaurant-reservations

# 3. Restart the affected service so the patched binary is the running binary.
sudo systemctl restart five-star-restaurant-reservations || true

# 4. Verify the running version.
five-star-restaurant-reservations --version

Verify the fix worked


<!-- enrich_agent_2:v1 -->
# 1. Confirm the running version matches the fixed-in version from the advisory.
#    Cross-check against the vendor advisory: https://wpscan.com/vulnerability/6e39090e-a4b2-4c16-806f-e2b1c456fb00/

# 2. Re-scan with your vulnerability scanner. The scanner should no longer flag
#    this CVE on the patched host.
# Example with Nmap NSE:
nmap -sV --script vuln <target-host>

# 3. Inspect the service / kernel logs for crash-loops or rollback events in
#    the first hour after the upgrade.
journalctl -u <service-name> --since "1 hour ago"
dmesg --since "1 hour ago"

If you cannot patch immediately

No official workaround exists beyond restricting network exposure to the affected component. Apply the vendor patch as the primary remediation.

How to verify the fix worked

After applying the patch, verify the running version in the product's admin UI or via the vendor-documented CLI command.
Confirm the patched build matches the version listed in the vendor advisory.
Run an authenticated vulnerability scan with a current signature set and confirm the scanner no longer flags CVE-2026-0658.
Review logs for the entire pre-patch window for indicators of compromise listed in the vendor or CISA advisory.
Confirm any network-layer mitigations that were applied as a stopgap have been reverted (or left in place intentionally) once the patch is verified.

If your installation was internet-reachable during the disclosure window, treat log review as part of the remediation rather than an optional follow-up. Look for log entries that do not match your normal request patterns, especially repeated requests to the same uncommon endpoint, and any administrative changes you cannot tie back to a known operator.

Frequently asked questions

Is CVE-2026-0658 being exploited in the wild?