{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-2452", "assignerOrgId": "655498c3-6ec5-4f0b-aea6-853b334d05a6", "state": "PUBLISHED", "assignerShortName": "rami.io", "dateReserved": "2026-02-13T09:57:35.371Z", "datePublished": "2026-02-16T10:16:22.027Z", "dateUpdated": "2026-02-16T10:16:22.027Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://marketplace.pretix.eu/", "defaultStatus": "unaffected", "packageName": "pretix-newsletter", "product": "pretix-newsletter", "vendor": "pretix", "versions": [{"changes": [{"at": "1.6.3", "status": "unaffected"}], "lessThan": "2.0.0", "status": "affected", "version": "1.0.0", "versionType": "python"}, {"lessThan": "2.0.1", "status": "affected", "version": "2.0.0", "versionType": "python"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Emails sent by pretix can utilize placeholders that will be filled with customer data. For example, when <code>{name}</code>\n is used in an email template, it will be replaced with the buyer's \nname for the final email. This mechanism contained a security-relevant bug:</p><p>It was possible to exfiltrate information about the pretix system through specially crafted placeholder names such as <code>{{event.__init__.__code__.co_filename}}</code>.\n This way, an attacker with the ability to control email templates \n(usually every user of the pretix backend) could retrieve sensitive \ninformation from the system configuration, including even database \npasswords or API keys. pretix does include mechanisms to prevent the usage of such \nmalicious placeholders, however due to a mistake in the code, they were \nnot fully effective for this plugin.</p><p>Out of caution, we recommend that you rotate all passwords and API keys contained in your <a target=\"_blank\" rel=\"nofollow\" href=\"https://docs.pretix.eu/self-hosting/config/\">pretix.cfg</a>&nbsp;file.<br></p>"}], "value": "Emails sent by pretix can utilize placeholders that will be filled with customer data. For example, when {name}\n is used in an email template, it will be replaced with the buyer's \nname for the final email. This mechanism contained a security-relevant bug:\n\nIt was possible to exfiltrate information about the pretix system through specially crafted placeholder names such as {{event.__init__.__code__.co_filename}}.\n This way, an attacker with the ability to control email templates \n(usually every user of the pretix backend) could retrieve sensitive \ninformation from the system configuration, including even database \npasswords or API keys. pretix does include mechanisms to prevent the usage of such \nmalicious placeholders, however due to a mistake in the code, they were \nnot fully effective for this plugin.\n\nOut of caution, we recommend that you rotate all passwords and API keys contained in your pretix.cfg https://docs.pretix.eu/self-hosting/config/ \u00a0file."}], "impacts": [{"capecId": "CAPEC-545", "descriptions": [{"lang": "en", "value": "CAPEC-545 Pull Data from System Resources"}]}, {"capecId": "CAPEC-77", "descriptions": [{"lang": "en", "value": "CAPEC-77 Manipulating User-Controlled Variables"}]}, {"capecId": "CAPEC-54", "descriptions": [{"lang": "en", "value": "CAPEC-54 Query System for Information"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 7.5, "baseSeverity": "HIGH", "exploitMaturity": "PROOF_OF_CONCEPT", "privilegesRequired": "LOW", "providerUrgency": "RED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/RE:L/U:Red", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "LOW"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-627", "description": "CWE-627 Dynamic Variable Evaluation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "655498c3-6ec5-4f0b-aea6-853b334d05a6", "shortName": "rami.io", "dateUpdated": "2026-02-16T10:16:22.027Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://pretix.eu/about/en/blog/20260216-release-2026-1-1/"}], "source": {"discovery": "INTERNAL"}, "title": "Unsafe variable evaluation in email templates", "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Limit backend access to trusted users, do not use user-controlled variables in the email templates."}], "value": "Limit backend access to trusted users, do not use user-controlled variables in the email templates."}], "x_generator": {"engine": "Vulnogram 0.5.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Emails sent by pretix can utilize placeholders that will be filled with customer data. For example, when {name}\n is used in an email template, it will be replaced with the buyer's \nname for the final email. This mechanism contained a security-relevant bug:\n\nIt was possible to exfiltrate information about the pretix system through specially crafted placeholder names such as {{event.__init__.__code__.co_filename}}.\n This way, an attacker with the ability to control email templates \n(usually every user of the pretix backend) could retrieve sensitive \ninformation from the system configuration, including even database \npasswords or API keys. pretix does include mechanisms to prevent the usage of such \nmalicious placeholders, however due to a mistake in the code, they were \nnot fully effective for this plugin.\n\nOut of caution, we recommend that you rotate all passwords and API keys contained in your pretix.cfg https://docs.pretix.eu/self-hosting/config/ \u00a0file."}], "id": "CVE-2026-2452", "lastModified": "2026-02-16T11:15:56.420", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "RED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:L/U:Red", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "LOW"}, "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6", "type": "Secondary"}]}, "published": "2026-02-16T11:15:56.420", "references": [{"source": "655498c3-6ec5-4f0b-aea6-853b334d05a6", "url": "https://pretix.eu/about/en/blog/20260216-release-2026-1-1/"}], "sourceIdentifier": "655498c3-6ec5-4f0b-aea6-853b334d05a6", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-627"}], "source": "655498c3-6ec5-4f0b-aea6-853b334d05a6", "type": "Secondary"}]}

{}