How severe is CVE-2020-10257?

CVE-2020-10257 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-10257 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-10257?

CVE-2020-10257 primarily affects Themerex Addons. In total, 103 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-10257?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-10257 published?

CVE-2020-10257 was published on 2020-03-10 and last updated on 2026-06-17.

CVE-2020-10257

CVE-2020-10257 is a critical-severity vulnerability in Themerex Addons with a CVSS 3.x base score of 9.8. 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Themerex Addons
Published: 2020-03-10
Last modified: 2026-06-17

Description

The ThemeREX Addons plugin before 2020-03-09 for WordPress lacks access control on the /trx_addons/v2/get/sc_layout REST API endpoint, allowing for PHP functions to be executed by any users, because includes/plugin.rest-api.php calls trx_addons_rest_get_sc_layout with an unsafe sc parameter.

Frequently asked questions

What is CVE-2020-10257?: The ThemeREX Addons plugin before 2020-03-09 for WordPress lacks access control on the /trx_addons/v2/get/sc_layout REST API endpoint, allowing for PHP functions to be executed by any users, because includes/plugin.rest-api.php calls trx_addons_rest_get_sc_layout with an unsafe sc parameter.
How severe is CVE-2020-10257?: CVE-2020-10257 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-10257 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-10257?: CVE-2020-10257 primarily affects Themerex Addons. In total, 103 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-10257?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-10257 published?: CVE-2020-10257 was published on 2020-03-10 and last updated on 2026-06-17.

References

https://www.wordfence.com/blog/2020/03/zero-day-vulnerability-in-themerex-addons-now-patched/

Affected products (103)

cpe:2.3:a:themerex:addons:1.70.3:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:ozeum-museum:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:chit_club-board_games:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.67:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:yottis-simple_portfolio:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.66:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:helion-agency_\&portfolio:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:amuli:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.65:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:nelson-barbershop_\+_tattoo_salon:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:hallelujah-church:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:right_way:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:prider-pride_fest:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.62.3:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:mystik-esoterics:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:skydiving_and_flying_company:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.62.1:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:dronex-aerial_photography_services:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.61.2:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:samadhi-buddhist:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.61.3:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:tantum-rent_a_car\,_rent_a_bike\,_rent_a_scooter_multiskin_theme:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:scientia-public_library:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:blabber:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.61.1:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:impacto_patronus_multi-landing:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.61:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:rare_radio:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.60:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:piqes-creative_startup_\&_agency_wordpress_theme:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.59.3:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:kratz-digital_agency:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.59.2:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:pixefy:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.59.1.1:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:netmix-broadband_\&_telecom:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.59:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:kids_care:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:addons:1.6.58.2:*:*:*:*:wordpress:*:*
cpe:2.3:a:themerex:briny-diving_wordpress_theme:*:*:*:*:*:wordpress:*:*

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