Is CVE-2026-84777 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-84777 being exploited in the wild.

How severe is CVE-2026-84777?

High severity, with a CVSS score of 7.4, published 3 September 2026.

Which products and versions are affected?

Really Simple SSL Really Simple SSL <=9.8.0.

Is there a fix for CVE-2026-84777?

A patch was published on 2026-09-02: Fix available in version 9.8.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-84777 attacked?

It is attacked over the network.

Am I affected by CVE-2026-84777?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-84777: Really Simple SSL broken authentication in login

Q: Is there a fix for CVE-2026-84777?

A patch was published on 2026-09-02: Fix available in version 9.8.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-84777 attacked?

It is attacked over the network.

Q: Am I affected by CVE-2026-84777?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-84777 · Severity: high · CVSS 7.4 · Published 2026-09-03

Really Simple SSL is a WordPress plugin used to enable HTTPS encryption and security on websites. A broken authentication vulnerability in versions 9.8.0 and earlier allows attackers to bypass the login system and gain unauthorized access to WordPress sites without valid credentials, potentially exposing customer data, website content, and administrative functions.

Quick answers

Is CVE-2026-84777 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-84777 being exploited in the wild.
How severe is CVE-2026-84777?: High severity, with a CVSS score of 7.4, published 3 September 2026.
Which products and versions are affected?: Really Simple SSL Really Simple SSL <=9.8.0.
Is there a fix for CVE-2026-84777?: A patch was published on 2026-09-02: Fix available in version 9.8.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-84777 attacked?: It is attacked over the network.
Am I affected by CVE-2026-84777?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The Really Simple SSL plugin contains a broken authentication vulnerability (classified as OWASP A7: Identification and Authentication Failures) that allows unauthenticated attackers to bypass the login mechanism. The vulnerability affects versions 9.8.0 and earlier; version 9.8.1 contains the fix. No special privileges or preconditions are required to exploit this vulnerability—an attacker needs only network access to the affected WordPress site. Successful exploitation enables an attacker to log in as arbitrary users, potentially gaining administrative access to the WordPress installation. The patch is available and users should immediately update to version 9.8.1 or later.

Affected products

Really Simple SSL Really Simple SSL <=9.8.0

Timeline

2026-09-03: disclosed
2026-09-02: patched: Fix available in version 9.8.1

References

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