{"id":"CVE-2026-120520","kind":"vulnerability","aliases":["CVE-2026-120520"],"related":[],"title":"WordPress GreenShift plugin leaks logged-in users' session cookies via image URLs","description":"The Greenshift – animation and page builder blocks plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 13.2.2 via the 'img (or any key the publisher references in {{GET:key}})' parameter. This makes it possible for unauthenticated attackers to extract authenticated users' HttpOnly WordPress session cookies, specifically wordpress_logged_in_* tokens, by injecting a nested {{COOKIE:}} placeholder via a GET parameter that causes the victim's browser to transmit the cookie value to an attacker-controlled host as an image src URL. Exploitation requires that a site publisher has configured a public GreenShift Element image block whose src attribute contains a {{GET:}} placeholder, and that a logged-in user can be induced to open the attacker's crafted link — neither condition is part of the plugin's default state.","summary":"Up to and including version 13.2.2, the GreenShift WordPress plugin lets an unauthenticated attacker make a logged-in user's browser send their wordpress_logged_in session cookie to an attacker-controlled host. The attacker gets the session token and can act as that logged-in user on the site.","severity":"medium","cvss":5.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["greenshift","package","self-hosted","wordpress"],"not_affected_if":["no-public-get-placeholder-image-block","plugin-above-13.2.2","plugin-not-installed"],"how_to_check":"- Check the installed GreenShift version in the WordPress admin plugin list or with `wp plugin get greenshift-animation-and-page-builder-blocks --field=version`\n- Look for public GreenShift Element image blocks whose src uses a {{GET:...}} placeholder","fix":"- GreenShift plugin: versions above `13.2.2` per the NVD description; the fixed version number is not stated in the sources","status":"open","published_at":"2026-11-07T03:17:03+00:00","first_seen_at":"2026-11-07T03:45:34+00:00","triaged_at":"2026-11-07T03:48:07+00:00","updated_at":"2026-11-07T03:48:07+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-11-07T03:48:07Z","model":"claude-haiku-5-5","output":{"fix":"- GreenShift plugin: versions above `13.2.2` per the NVD description; the fixed version number is not stated in the sources\n- unknown for a specific patched release","reach":"internet","title":"WordPress GreenShift plugin leaks logged-in users' session cookies via image URLs","impact":"medium","summary":"Up to and including version 13.2.2, the GreenShift WordPress plugin lets an unauthenticated attacker make a logged-in user's browser send their wordpress_logged_in session cookie to an attacker-controlled host. The attacker gets the session token and can act as that logged-in user on the site.","audience":"businesses","category":"package","nicknames":[],"who_cares":["wordpress","greenshift","self-hosted"],"confidence":0.7,"fix_status":"unknown","needs_auth":"no","worst_case":"attacker takes over logged-in admin sessions via stolen cookies","analyst_note":"Confirm the fixed version of GreenShift after 13.2.2 and whether the vendor published a patch; check the NVD page https://nvd.nist.gov/vuln/detail/CVE-2026-120520.","how_to_check":"- Check the installed GreenShift version in the WordPress admin plugin list or with `wp plugin get greenshift-animation-and-page-builder-blocks --field=version`\n- Look for public GreenShift Element image blocks whose src uses a {{GET:...}} placeholder\n- unknown for anything beyond this","plain_action":"","needs_analyst":true,"not_affected_if":["plugin-not-installed","plugin-above-13.2.2","no-public-get-placeholder-image-block"],"who_is_affected":"Sites running GreenShift 13.2.2 or older where a site publisher has added a public GreenShift Element image block whose src contains a {{GET:}} placeholder. Exposure also requires a logged-in user to open a crafted link. Sites without the plugin, or without that image block configuration, are not affected per the description.","user_interaction":"yes","needs_special_setup":"yes","severity_if_unknown":"medium"},"cost_usd":0.0008,"input_tokens":4422,"output_tokens":715,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-120520':16A,19A '-2026':15A,18A '13.2.2':31B,102C 'act':69B 'anim':81C 'attack':39B,58B,62B,122C,160C,202C 'attacker-control':57B,159C 'attribut':184C 'authent':125C 'block':85C,181C 'browser':47B,151C 'builder':84C 'caus':147C 'condit':207C 'configur':175C 'contain':185C 'control':59B,161C 'cooki':10A,54B,130C,140C,155C 'craft':204C 'cve':14A,17A 'default':214C 'element':179C 'exploit':168C 'exposur':94C 'extract':124C 'get':63B,113C,144C,187C 'greenshift':2A,20B,33B,80C,178C 'host':24B,60B,162C 'httpon':127C 'imag':12A,165C,180C 'img':105C 'includ':29B,101C 'induc':198C 'inform':93C 'inject':137C 'key':108C,114C 'leak':4A 'let':36B 'link':205C 'log':6A,43B,51B,73B,133C,193C 'logged-in':5A,42B,72B,192C 'make':40B,117C 'neither':206C 'nest':139C 'open':200C 'packag':21B 'page':83C 'paramet':115C,145C 'part':209C 'placehold':141C,188C 'plugin':3A,35B,86C,212C 'possibl':119C 'public':177C 'publish':110C,173C 'refer':111C 'requir':169C 'self':23B 'self-host':22B 'send':48B 'sensit':92C 'session':9A,53B,65B,129C 'site':78B,172C 'specif':131C 'src':166C,183C 'state':215C 'token':66B,135C 'transmit':153C 'unauthent':38B,121C 'url':13A,167C 'user':8A,45B,75B,126C,195C 'valu':156C 'version':30B,97C 'via':11A,103C,142C 'victim':149C 'vulner':90C 'whose':182C 'wordpress':1A,25B,34B,50B,88C,128C,132C","nicknames":[],"mitigations":[],"who_affected":"Sites running GreenShift 13.2.2 or older where a site publisher has added a public GreenShift Element image block whose src contains a {{GET:}} placeholder. Exposure also requires a logged-in user to open a crafted link. Sites without the plugin, or without that image block configuration, are not affected per the description.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["greenshift","medium","package","selfhosted","wordpress"],"campaign_type":null,"search_a":"'-120520':16A,19A '-2026':15A,18A 'cooki':10A 'cve':14A,17A 'greenshift':2A 'imag':12A 'leak':4A 'log':6A 'logged-in':5A 'plugin':3A 'session':9A 'url':13A 'user':8A 'via':11A 'wordpress':1A","search_b":"'13.2.2':31B 'act':69B 'attack':39B,58B,62B 'attacker-control':57B 'browser':47B 'control':59B 'cooki':54B 'get':63B 'greenshift':20B,33B 'host':24B,60B 'includ':29B 'let':36B 'log':43B,51B,73B 'logged-in':42B,72B 'make':40B 'packag':21B 'plugin':35B 'self':23B 'self-host':22B 'send':48B 'session':53B,65B 'site':78B 'token':66B 'unauthent':38B 'user':45B,75B 'version':30B 'wordpress':25B,34B,50B","search_c":"'13.2.2':102C 'anim':81C 'attack':122C,160C,202C 'attacker-control':159C 'attribut':184C 'authent':125C 'block':85C,181C 'browser':151C 'builder':84C 'caus':147C 'condit':207C 'configur':175C 'contain':185C 'control':161C 'cooki':130C,140C,155C 'craft':204C 'default':214C 'element':179C 'exploit':168C 'exposur':94C 'extract':124C 'get':113C,144C,187C 'greenshift':80C,178C 'host':162C 'httpon':127C 'imag':165C,180C 'img':105C 'includ':101C 'induc':198C 'inform':93C 'inject':137C 'key':108C,114C 'link':205C 'log':133C,193C 'logged-in':192C 'make':117C 'neither':206C 'nest':139C 'open':200C 'page':83C 'paramet':115C,145C 'part':209C 'placehold':141C,188C 'plugin':86C,212C 'possibl':119C 'public':177C 'publish':110C,173C 'refer':111C 'requir':169C 'sensit':92C 'session':129C 'site':172C 'specif':131C 'src':166C,183C 'state':215C 'token':135C 'transmit':153C 'unauthent':121C 'url':167C 'user':126C,195C 'valu':156C 'version':97C 'via':103C,142C 'victim':149C 'vulner':90C 'whose':182C 'wordpress':88C,128C,132C","first_public_at":"2026-11-07T03:17:03+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cvss_by":"security@wordfence.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-120520","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120520","severity":null,"published_at":"2026-11-07T03:17:03+00:00","modified_at":"2026-11-07T03:17:03+00:00","first_seen_at":"2026-11-07T03:45:34+00:00","fetched_at":"2026-11-07T03:45:34+00:00","note":null}],"documents":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}