Roundcube | Breaking Cybersecurity News | The Hacker News

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday  added  a medium-severity security flaw impacting Roundcube email software to its Known Exploited Vulnerabilities ( KEV ) catalog, based on evidence of active exploitation. The issue, tracked as  CVE-2023-43770  (CVSS score: 6.1), relates to a cross-site scripting (XSS) flaw that stems from the handling of linkrefs in plain text messages. "Roundcube Webmail contains a persistent cross-site scripting (XSS) vulnerability that can lead to information disclosure via malicious link references in plain/text messages," CISA said. According to a description of the bug on NIST's National Vulnerability Database (NVD), the vulnerability impacts Roundcube versions before 1.4.14, 1.5.x before 1.5.4, and 1.6.x before 1.6.3. The flaw was  addressed  by Roundcube maintainers with  version 1.6.3 , which was released on September 15, 2023. Zscaler security researcher Niraj Shivtarkar has be...

The threat actor known as  Winter Vivern  has been observed exploiting a zero-day flaw in Roundcube webmail software on October 11, 2023, to harvest email messages from victims' accounts. "Winter Vivern has stepped up its operations by using a zero-day vulnerability in Roundcube," ESET security researcher Matthieu Faou  said  in a new report published today. Previously, it was using known vulnerabilities in Roundcube and Zimbra, for which proofs-of-concept are available online." Winter Vivern, also known as TA473 and UAC-0114, is an  adversarial collective  whose objectives align with that of Belarus and Russia. Over the past few months, it has been attributed to attacks against Ukraine and Poland, as well as government entities across Europe and India. The group is also assessed to have exploited another flaw Roundcube as recently as August and September (CVE-2020-35730), making it the  second nation-state group after APT28  to target the op...

When people think of cybersecurity threats, they often picture external hackers breaking into networks. However, some of the most damaging breaches stem from within organizations. Whether through negligence or malicious intent, insiders can expose your organization to significant cybersecurity risks. According to Verizon's 2024 Data Breach Investigations Report , 57% of companies experience over 20 insider-related security incidents a year, with human error involved in 68% of data breaches. With that, insider attacks result in the highest costs, averaging USD 4.99 million per attack, as per the 2024 Cost of a Data Breach Report by IBM Security.  What are insider threats? An insider threat originates from within an organization – it's the potential for anyone with authorized access to your critical systems to misuse their access, harming your organization. The worst part is that insiders are already within your IT perimeter and are familiar with your internal security prot...