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SEOPress

Bug XSS di Plugin WordPress SEOPress Memungkinkan Pengambilalihan Situs

August 18, 2021 by Winnie the Pooh

Kerentanan cross-site scripting (XSS) yang tersimpan di plugin SEOPress WordPress dapat memungkinkan penyerang untuk menyuntikkan skrip ke situs web, kata para peneliti.

SEOPress adalah alat pengoptimalan mesin pencari (SEO) yang memungkinkan pemilik situs mengelola metadata SEO, kartu media sosial, pengaturan Iklan Google, dan banyak lagi. Ini diinstal di lebih dari 100.000 situs.

Bug ini (CVE-2021-34641) memungkinkan setiap pengguna yang diautentikasi, seperti pelanggan, untuk memanggil rute REST dengan nonce yang valid, dan untuk memperbarui judul dan deskripsi SEO untuk setiap posting.

“Permissions_callback untuk titik akhir hanya diverifikasi jika pengguna tidak memiliki REST-API yang valid dalam permintaan,” menurut postingan tersebut. “Nonce REST-API yang valid dapat dibuat oleh setiap pengguna yang diautentikasi menggunakan rest-nonce WordPress core AJAX action.”

Bergantung pada apa yang judul dan deskripsi yang diperbarui oleh penyerang, itu akan memungkinkan sejumlah tindakan jahat, hingga dan termasuk pengambilalihan situs secara penuh, kata para peneliti.

Untuk melindungi situs web mereka, pengguna harus meningkatkan ke versi 5.0.4 dari SEOPress.

Kerentanan dalam plugin WordPress tetap cukup umum. Misalnya, pada bulan Juli enam kelemahan kritis diungkapkan yang memengaruhi plugin WordPress Front File Manager versi 17.1 dan 18.2, aktif di lebih dari 2.000 situs web.

Pada bulan Februari, bug keamanan XSS yang belum ditambal dan disimpan ditemukan berpotensi mempengaruhi 50.000 pengguna plugin Contact Form 7 Style.

Selengkapnya: The Threat Post

Tagged With: Bug, Cybersecurity, SEOPress, WordPress Plugin, XSS

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