How severe is CVE-2025-4577?

CVE-2025-4577 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-4577 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4577?

CVE-2025-4577 affects Wpbeginner Smash Balloon Social Post Feed. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4577?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-4577 have an EU (EUVD) identifier?

Yes. CVE-2025-4577 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17658.

When was CVE-2025-4577 published?

CVE-2025-4577 was published on 2025-06-10 and last updated on 2026-06-17.

CVE-2025-4577

CVE-2025-4577 is a medium-severity vulnerability in Wpbeginner Smash Balloon Social Post Feed with a CVSS 3.x base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-17658
Weakness: CWE-79
Affected product: Wpbeginner Smash Balloon Social Post Feed
Published: 2025-06-10
Last modified: 2026-06-17

Description

The Smash Balloon Social Post Feed – Simple Social Feeds for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the data-color attribute in all versions up to, and including, 4.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Frequently asked questions

What is CVE-2025-4577?: The Smash Balloon Social Post Feed – Simple Social Feeds for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the data-color attribute in all versions up to, and including, 4.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
How severe is CVE-2025-4577?: CVE-2025-4577 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-4577 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4577?: CVE-2025-4577 affects Wpbeginner Smash Balloon Social Post Feed. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4577?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-4577 have an EU (EUVD) identifier?: Yes. CVE-2025-4577 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17658.
When was CVE-2025-4577 published?: CVE-2025-4577 was published on 2025-06-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wpbeginner:smash_balloon_social_post_feed:*:*:*:*:*:wordpress:*:*

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