CVE-2026-49777
CWE-1284Published: June 5, 2026· Updated: Jun 17, 2026
Official Description
Improper Validation of Specified Quantity in Input vulnerability in ShapedPlugin, LLC Product Slider Pro for WooCommerce allows Malicious Software Implanted.
This issue affects Product Slider Pro for WooCommerce: from n/a before 3.5.4.
Risk Analysis
This critical vulnerability in ShapedPlugin, LLC Product Slider Pro for WooCommerce allows for malicious software implantation due to improper validation of specified quantity in input. With a perfect CVSS score of 10.0, this flaw poses an extreme risk of complete system compromise. It is confirmed to be actively exploited, demanding immediate action.
This vulnerability is actively being exploited in the wild. It is remotely exploitable over the network with low attack complexity and requires no authentication.
Update Product Slider Pro for WooCommerce to version 3.5.4 or later. Regularly review and sanitize all user-supplied input in web applications.
Technical Analysis
CVE-2026-49777 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 10.0.
The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.
CISA has added CVE-2026-49777 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (1)
Quick Facts
Related CVEs (CWE-1284)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-49777 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1